This gaming guide is for Natsu-Mon, a popular 20th century summer-themed game on Steam. It is designed for players who want to achieve 100% completion and unlock all achievements. Please note that this guide may contain spoilers and is best suited for those who have already completed at least one playthrough. It is recommended to freely explore the game on your first playthrough before using this guide, as it may reduce the overall enjoyment of the game.
introduction
This guide is only applicable to the current Steam version and contains some spoilers. It is intended for players who wish to play the game for a second time or more and complete all achievements.
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It is highly recommended to freely explore and finish the first playthrough before reading this guide! Following the guide strictly on your first playthrough can significantly reduce the enjoyment of the game.
To easily locate an achievement, you can use Ctrl + F to open the search box and type in the achievement name.
If you notice any errors or have questions, please leave a comment to let me know! Thank you for reading🌻
中文玩家請點擊這裡↓
100%全成就中文指南
．Bronze Sticker
※ After arriving at the cabin in the mountains and talking with Mountain pops, get the cloak.
※ Recommend raising piglets
you can earn ten thousand yuan for each pig you raise to adulthood.
※ piglets are mostly found near oak trees
※ You can refer to this guide for fishing locations
※ It will be held in Drumming park on the evening of August 15th.
After talking with Junko, we can dance together.
※ Unlock as the story progresses and find a reporter to promote it.
※ You need to watch a complete round of all types of fireworks until the achievement pops up.
Can’t just leave halfway to go to sleep
※ There are a total of 15 locations. It’s recommended to investigate all the bus stops in the first round of the game, play round 2 you can easily teleport on the map.
．Silver Sticker
※ Unlock as the story progresses and find a reporter to promote it
A total of 4 advertisements are needed to complete it.
※ Every morning do the exercise at the shrine until the last day.
※ Please note that some side quests have time limits, if you don’t complete them on the same day, you will miss the chance to finish them.
(Time limited quests usually involve following NPC in Little adventures.)
．Gold Sticker
※ You can only earn rewards in one round of the game; during the second playthrough, you won’t be able to carry over the amount of money from the previous round.
※ Includes insect、fish and item catalogs.
．DLC Achievements
※ If you talk to the DJ and repair the antenna on the first day, you can listen to all the broadcast programs by the evenings of the 1, 3, 16, 19th.
※ You need to defeat all target objects within the time limit.
It’s quite challenging, so please try multiple times!
You can take on the challenge after getting the rapid fire toy gun from the Yachigashira professor, which will make it a bit easier.
※ Complete all Big Adventure and Flatfoot Files missions
➤ All Endings Achievements🔚
※ You need to collect a total of 446 drawing diaries, which include dialogue events, insects, fish, and item catalogs. Priority level：A
This is the most challenging part of the game. In the second playthrough, the diary inheritance only includes insects, fish, and items you have obtained. Since the drawing diaries for dialogue events cannot be directly inherited, missing even one will essentially require you to start over.
※ Complete the collection of all insect catalogs.
Priority level：B
※ Find all 30 Zashiki-warashi
Priority level：C
※ Complete the “Reach for the Stars!” mission.
Priority level：D
※ Achieve max star level in circus management and purchase all costumes and props.
Priority level：E
※ Complete All Flatfoot Files missions (excluding DLC)
Priority level：F
※ None of the above ending conditions have been met.
Priority level：G
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DLC Added Endings
You need to have the DLC to unlock it, but the priority determination for the endings is currently not very clear.
※ Complete the DLC-related events and quests.
Priority level：？
I originally thought its priority would be higher than Storyteller, but after completing the Art Teacher ending, I went back to load my save and intentionally skipped one event diary entry. The DLC Report Card was 100% complete, yet the ending still classified me as a Mountaineer.
During my fourth playthrough, I didn’t complete the majority of the timed events and quests, only finishing the DLC-related tasks and events. I was missing a few drawing diaries from the DLC Report Card, but I still unlocked the ending successfully. To test this, I loaded a save from a few days earlier and completed all the climbing and Flatfoot Files tasks, but I still ended up with the DLC ending.
So, I suspect it might be related to the percentage of completed timed events and regular tasks, as I only caught the fish needed for the DLC in the Fishing Dinner task.
If you have more clues, please leave a message to let me know , Thank you very much!
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How can I collect multiple endings in a single playthrough？
The currently recommended method is to keep one condition for each ending unfinished and then selectively complete them based on your situation during the last three days of the game.
For example：
．Leave one climbing task location unfinished
．After finding 29 Zashiki-warashi, keep the last one
．Hold off on buying one circus prop… and so on
➤ The Encyclopedia of Items📜
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To help you check the items you have not yet obtained
- The items added in the DLC can generally be obtained by completing the relevant tasks from Yachigashira Professor . There is also a Zashiki-warashi in the Hideout on Sunset Island that will invite you to play a shooting game. If you meet the score requirements, you can receive its doll and a diving suit.
- The circus dolls can be obtained during the festival held in the middle of the game. Once the booths open, you can play the pinball and shooting games to reach the specified scores to receive them. To get Love-chan doll, you need to purchase it at the toy store, while Junko’s doll can only be won in the shooting game after triggering her performance scene at the circus.
Even if you don’t completely collect everything in one playthrough, it’s fine as long as you plan to play a second time or more. Except for the dialogue event diaries with the residents, the records for insects, fish and item catalogs can be directly inherited for you to continue searching. However, functional items will need to be repurchased and you’ll also have to earn money again
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About the insect and fish Encyclopedia
※Please check Bug Guide、 Fishing Guide
➤ Locations of Tengu treasures👺
- The Map
in the Sea beside
The position above the Weathered Mural
- Reference Map：
Located at the highest point of the town Clock tower, you can easily grab it while completing the climbing task.
Teleport to the area near the ljin pass bus stop, located in front of the large tree on the small slope next to it.
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Located at the highest point of Tengunoyama, you can easily grab it while completing the climbing task.
Hanging on the mast of the Sunken ship, you can swim to the nearby rock and fly over to grab it.
Teleport to the area near the Patchwork Woods and head toward the direction of Yomogi Valley shown in the map.
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➤ Locations of Fossils ⛏️
- The Map
A total of 2 fossils are needed for the museum exhibition, located on the hillside behind the Weathered Mural.
A total of 5 fossils are needed for the museum exhibition, located on the hillside next to the mountains above Treasure Mountain.
A total of 7 fossils are needed for the museum exhibition, located on the hillside near the Tonari Mountain.
A total of 7 fossils are needed for the museum exhibition, located on the hillside platform near the Patchwork Woods.
A total of 7 fossils are needed for the museum exhibition, located on the hillside platform near the Castle Hill.
※ On the eve of the festival, the stalls will open a specialty shop for buying and selling, where you can purchase 3 fossils from Ryoko in front of the stall to have them appraised.
The appraisal is based on probability, so if it turns out to be junk, you can just take it to the store to sell. The fossil digging points will refresh every morning, so you can go dig and check for appraisals every day until you achieve your goal.
➤ Locations of Zashiki-warashi🎎
Located on the cliff face, requiring climbing to find.
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You need to find the entrance and go inside.
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Inside the cave, you can hear its voice.
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After jumping down from the gravestone at Lighthouse Mountain, fly to the right and you’ll see it.
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Located roughly halfway up the mountain.
you can see it by walking a bit forward from the previous point
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Located in the gap between the railway and the road
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You need to stand on the tree stump and use the toy gun to hit the ball in a parabolic arc.
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Located on the cliff face, requiring climbing to find.
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In the waterfall cave
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Underneath the elevated bridge in front of Yomogi Falls.
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The house behind the Town Museum.
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Under the bridge connecting the museum to the cemetery.
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💡Note：Tips for Collecting all Drawing diaries
Adjust the in-game time flow according to your collection situation; you can speed it up or slow it down at any time. Of course, playing multiple playthroughs makes collecting easier. But it can be very time-consuming
Except for the DLC-added endings, whose priority determination is not very clear, it is recommended to play through at least a second time to ensure you unlock them.
Other ending conditions can theoretically be retained in the same playthrough until the last three days of saved progress.
Dialogue diaries that are easy to miss typically require continuous and timely conversations; after that, no matter how much you talk, you won’t be able to obtain them. Try to talk to the residents whose avatars are displayed on the map as much as possible during the weekdays.
After Love-chan joins on the sixth day, you can ask her to do divination daily, which will also give you hints about some important events.
- On 8/4, talking to the mother in front of the station will grant you a diary about the names of the port birds.
If you don’t receive it immediately after the conversation, you need to keep trying to talk to her before 8/20 until you get it. After the 20th, it will no longer be obtainable.
- From 8/5 ~ 8/6, you need to talk to Junko and the reporter in front of the bookstore for two consecutive days to trigger a dialogue diary.
You must first investigate the crime scene above the coffee shop roof.
- On 8/6 ~ 8/7, you must talk to TokoToko-Kun on the second-floor corridor for two consecutive days to trigger his diary with Love-chan.
If you don’t receive it immediately after the conversation, you will need to keep trying to talk to him until you obtain it.
- From 8/10 ~ 8/13, go to the bell tower and talk to Chiharu; you need to have a conversation with him for three consecutive days to obtain the urbanization diary.
If you don’t receive it immediately, you must keep trying to talk to him before the 17th until you get it. If you miss the deadline, you won’t be able to obtain it.
- On 8/16, talking to the coffee shop owner will trigger a little adventure of delivering coffee beans.
Only the first trigger will result in a drawing diary, and there will be another chance later that you can choose not to complete.
- From 8/26 ~ 8/30, you need to talk to Nagase in the tent for five consecutive days during the daytime to trigger a drawing diary about the circus name.
Missing even one day will mean you can’t obtain it. On the 28th, he will run to the park to listen to the band play after morning exercises, so you won’t be able to talk to him then, but it won’t affect your progress.
- The coffee shop concert can have all tracks listened to the fastest on the 1st, 9th, and 16th.
- The park band’s concert can be completed on the 8th, 15th, and 22nd.
- The evening broadcast from the Sunset Island radio station can have all programs listened to the fastest on the 1st, 3rd, 16th, and 19th (DLC).
This is a rough overview, for DLC-related dialogue events, just talking to Tei-kiatsu and Tobiyame will ensure you don’t miss anything.
Fin.
And that wraps up our share on Natsu-Mon: 20th Century Summer Kid: Natsu-Mon！100% Achievements Guide + DLC. If you have any additional insights or tips to contribute, don’t hesitate to drop a comment below. For a more in-depth read, you can refer to the original article here by Futejia +, who deserves all the credit. Happy gaming!