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Koshiandoh (こしあん堂) Fanpage
@koshiandohfanpage.bsky.social
23 followers 25 following 17 posts
Welcome to the Koshiandoh Fanpage! A fanpage dedicated to the obscure Japanese Flash Animation team known as Koshiandoh (こしあん堂) from the early to mid 2000s

Banner image by moomlin
Ran by @cobaltth.bsky.social
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koshiandohfanpage.bsky.social
Koshiandoh (こしあん堂) Fanpage @koshiandohfanpage.bsky.social · May 24
I've opened up a discord server for the Koshiandoh fans out there! Come on in to have fun and talk about Koshiandoh's works and derivatives!

Remember to follow the rules for a good experience!
LINK: discord.com/invite/dwBKd...
#こしあん堂 #なつみSTEP
Reposted by Koshiandoh (こしあん堂) Fanpage
dottyboi64.bsky.social
we fucking love natsumi step
September 28, 2025 at 11:31 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
baranplaysagain.bsky.social
Have y'all heard of that one Winamp skin which was themed around koshiandoh?
That actually exists, the filename for it is called "koshiamp", just thought it'd be neat to ask fellow people
October 4, 2025 at 6:58 AM
koshiandohfanpage.bsky.social
Here it is!
October 15, 2025 at 1:14 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
baranplaysagain.bsky.social
You might not believe this
October 7, 2025 at 2:21 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
baranplaysagain.bsky.social
MeeM
September 19, 2025 at 12:12 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
oyashin.bsky.social
なつみＳＴＥＰ！
#イラスト　#なつみSTEP
July 27, 2025 at 3:48 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
flano606.misskey.io.ap.brid.gy
すぐ参照出来る所(Pixiv)にあった一番古い絵が2011年の絵（右）だった。流石に今見るとかなり恥ずかしい​:blobcat_tereru:​
July 20, 2025 at 2:45 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
skrpow.bsky.social
今日中には間に合わなさそうなので、下書きだけでも載せておこう…なつみちゃんごめんね😿💦

#なつみSTEP!
July 20, 2025 at 10:12 AM
Reposted by Koshiandoh (こしあん堂) Fanpage
shienori08.bsky.social
なつみSTEP!
July 20, 2025 at 2:36 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
shimizusanjp.bsky.social
Rivals of Aether、MODキャラ死ぬほどたくさん居てマジで楽しい……なにより感動したのはあの名作Flash「なつみSTEP!」の安堂なつみを作った人がいたと言う事実。
youtube.com/watch?v=LstQ...
Natsumi - RoA Custom Character
YouTube video by LalalaDoomsday
m.youtube.com
November 22, 2024 at 1:08 AM
Reposted by Koshiandoh (こしあん堂) Fanpage
kumamic.bsky.social
殺 伐 と し た ス レ に 「 な つ み S T E P ！ 」 の フ ァ ン ア ー ト が ！
＿/＼／＼/＼／|＿
＼　　　　　　 ／
＜ 　ｺﾞﾉﾚｺﾞ　　＞
／　　　　　　 ＼
￣|／＼/＼/＼/￣

「なつみSTEP!」のファンアートです。
FLASH黄金時代にはまだ「自分でつくる」という方向で乗っかれなくて（それができるようになったのは色々と環境が整ったニコニコ以降ですね）ただただお祭りを傍観するばかりの立場でした。
あの頃のインターネットの、いろいろな分野での「終わらないお祭り」感が当時の自分を救ってくれました。

「quino」も好きだったな。まだ観れるかな？
June 19, 2025 at 1:18 PM
koshiandohfanpage.bsky.social
I've opened up a discord server for the Koshiandoh fans out there! Come on in to have fun and talk about Koshiandoh's works and derivatives!

Remember to follow the rules for a good experience!
LINK: discord.com/invite/dwBKd...
#こしあん堂 #なつみSTEP
May 24, 2025 at 4:18 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
cpqpresario.bsky.social
she was so real for this
natsumi step
November 22, 2024 at 5:15 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
parsee.bsky.social
I'll also share some bonuses goodies, as a thank you for reading this far!
Eva!Mimi i mean of course i had a pop'n music character here. are you crazy. She doesn't have an image of her on the UI because I was planning to redraw this render. Sourcelist: <s1> BEMANI, It's Mainstay Artists and Arcade Rhythm Games </s1> <s2> GAINAX/Studio TRIGGER and Any Licensed Song in Pop'n Music</s2> <s3> Mecha media and Artists Assosciated with It</s3> <s4> Angels, heaven and Holy Religion </s4> As you can see, this sourcelist is also uniquely formatted- This was the plan for the finalized sourcelists, themed around HTML. Agerasia Tower's Art Style Guide Step 'n' Syndrome "evil" alt- Based on the more iconic imagery in both Natsumi STEP! and Irisu Syndrome! Agerasia Tower Stock Style Guide
November 15, 2024 at 10:05 PM
Reposted by Koshiandoh (こしあん堂) Fanpage
parsee.bsky.social
Do note- These character showcases include previously cut characters! Not all of these made it to the final roster.
For example, at some point the roster had 24 characters- but no Losers bracket.
3D Gif Dubstep i mean look at him pick by Sword * The McMash Clan/Kate Mullins, their collaborators, & Monstercat Artists * Artists featured on the 3D GIF Dubstep Account * Dubstep, Drum N’ Bass, & Breakbeat * Uncanny/Bad-looking CGI and Science The Dark Hero, Axel! god please i need him somewhere hes such a damn cool pick. PLEASE disregard the fact that disgaea is weird. * Nippon Ichi, It's artists and SRPGs * Superhero Media, Tokusatsu, and Heroism as a concept * J-Rock * Unholy Religion, Electricity, and Martial Arts PAC-CHAMP I forgot how this character came to be, but he's for SURE one of my favorite concepts in this. I believe LoanShark added deadass Pac-Man to a project, and DFX had an idea themed around Championship Edition... Apologies!! I forgot how the story went!! Sourcelist: * Namco Properties and 80's-90's Arcade Culture * Paranormal entities and Pac-Man Collectables * Retro-Throwback Media and Gaming as a concept * Techno, UK Hardcore and Pac-Man CE artists Step 'n' Syndrome!! A team-up of two characters that I love to DEATH that fit.... Strangely well! Those being Irisu Kyouko from Irisu Syndrome! and Natsumi Andoh form Natsumi STEP! This is just me indulging myself into stuff I love, honestly. Sourcelist: * Deceptive/Bait 'n Switch Horror and Tonal Dissonance * Japanese Surrealist Horror and Meta-Horror * Puzzle games and Asian Flash/Freeware Media * Bunnies and Cats
November 15, 2024 at 9:47 PM
koshiandohfanpage.bsky.social
Natsumi Andoh's HELIKOPTER HELIKOPTER aerial up attack in Rivals of Aether
#NatsumiSTEP #NatsumiAndoh #RivalsofAether #RoA #Pico #こしあん堂 #安堂なつみ #なつみSTEP
April 16, 2025 at 10:49 AM
koshiandohfanpage.bsky.social
April fools!

The whole joke was that the redesign resembles Powered Natsumi Hinata from Sgt. Frog AKA Keroro in Japan!

Natsumi Andoh's design wouldn't be going anywhere
April 2, 2025 at 5:10 AM
koshiandohfanpage.bsky.social
So I figured out that Natsumi's design wasn't good for my tastes anymore. Therefore, on the left, I have made a new and improved Natsumi design that's 100% totally not inspired by anything for Natsumi CD! Hope you enjoy!

#NatsumiSTEP #なつみSTEP #こしあん堂 #pixelart #NatsumiAndoh
A brand new design totally not reminiscent of anything
April 1, 2025 at 3:42 PM
koshiandohfanpage.bsky.social
Blowing Some bubbles (Based on the unplayable, but downloadable game in the Koshian-fes, Natsumi's Soap Bubble)

Yes, a weapon system will be implemented in Natsumi CD!

#Koshiandoh #NatsumiSTEP #なつみstep #こしあん堂
Natsumi's crowbar morphed into a bubble blower! She's blowing pink bubbles that spread and damage enemies!
December 19, 2024 at 4:49 AM
koshiandohfanpage.bsky.social
Natsumi andoh is in Minecraft now?
#NatsumiSTEP #Minecraft #なつみSTEP
December 6, 2024 at 7:39 AM
Reposted by Koshiandoh (こしあん堂) Fanpage
heathdtoc.bsky.social
なつみSTEPという作品のファンアートです
September 21, 2024 at 9:53 AM
Reposted by Koshiandoh (こしあん堂) Fanpage
pst328.bsky.social
安堂なつみ
February 7, 2024 at 6:32 AM
Reposted by Koshiandoh (こしあん堂) Fanpage
ameyuki001.bsky.social
A sad story
#drawing
#なつみstep
#描いてみる
#フォロー欲しい
October 23, 2024 at 5:56 PM
koshiandohfanpage.bsky.social
Sprites for a game known as Natsumi's soap bubble found in the Koshian Fes, STEP BY STEP!

It is unknown how to run this game as its an .LZH file. If anyone knows how, let me know!

LINK OF ORIGIN: web.archive.org/web/20081202...

#なつみstep #NatsumiSTEP #Koshiandoh #こしあん堂
October 19, 2024 at 5:25 AM