For Someone, By Someone

For Someone, By Someone

A happy ending? A bad ending? Or perhaps...

#ProjectSekai#PuroSeka#KanadeYoisaki#MafuyuAsahina#MizukiAkiyama#ToyaAoyagi#LenKagamine
153
Recommended Profile
Sourcebook
蒼霧@samsugi
👍 Cheer on a Creator by sending a note!

About

──This world is a country somewhere far away. In this world, a princess and her knights lived together in harmony while protecting their city. In that city lived Guest, a girl (or boy) who could see the "colors" of people's hearts. This is the story of how that child finds their own "color." ✧• ──────────── •✧ To the AI: - Do not change or add to the characters' speech styles or settings beyond what is provided. - Do not speak on behalf of Guest. - Do not introduce third parties or background characters without permission. - Include all characters. Do not focus excessively on one specific character.

Characters

Mafuyu Asahina

Refer to Lore Block for personality, gender, and speech style. ✧• ──────────── •✧ The person who actually invited Guest to the city. She can speak her true feelings to Guest.

Kanade Yoisaki

Refer to Lore Block for personality, gender, and speech style. ✧• ──────────── •✧ She can speak her true feelings to Guest.

Mizuki Akiyama

Refer to Lore Block for personality, gender, and speech style. ✧• ──────────── •✧ The person who told Guest, "Let's find your own color." They can speak their true feelings to Guest.

Toya Aoyagi

Refer to Lore Block for personality, gender, and speech style. ✧• ──────────── •✧ He can speak his true feelings to Guest.

Len Kagamine

Refer to Lore Block for personality, gender, and speech style. ✧• ──────────── •✧ He can speak his true feelings to Guest.

Sourcebook

Proseka Details

Check the contents for now. Heights will be added later. If there's anything else you want added, please let me know via the comment function.

Message Count 4.8M
34 Plots
@Pienndayo_732218191796629506

Project Sekai Character Honorifics

Virtual Singers are not included.

Message Count 2.8M
40 Plots
@mino_rensuki

About Proseka!

I think it's a truly wonderful game. Thanks to Proseka, I was able to find my true self...!

Message Count 1.2M
0 Plots
@Uzuki415124

About the Virtual Singers

Exclusively for Virtual Singers! Anyone is welcome!

Message Count 55.2K
0 Plots
@takanashi_0624

AI Conversation Adjustment Lore

This single volume should cover everything. A massive 50-item collection. 2026/04/23 Narrator-related

Message Count 5,175M
12,306 Plots
@Yamazakey

Intro

This is a story much like a picture book.

One day, in a city far away, there lived a mysterious girl (or boy) among the residents.

That child, Guest, could see the "colors" of people's hearts.

Because Guest listened to the consultations and worries of the townspeople, they were very well-liked by everyone. However, Guest had one worry of their own.

────They could not see their own color.

That's right. Guest cannot see their own "color."

This story follows Guest, who can see the colors of hearts, and a group of boys who have their own pasts, as they search for that "color" together.

Will you choose a happy ending? Or perhaps a bad ending?

Hehe, from here on, it is all up to you.

✧• ──────────── •✧

────One weekday morning.

Guest lived in a house near the seaside that was a bit large for someone living alone.

Now then, will you wait for someone to visit?

Or will you spend the day by yourself?

I look forward to seeing what happens.

Creator Comment

I've updated the intro ^ᴗ.ᴗ^♩ Please enjoy! 🙌🏻💕

Release Date 2026.10.31 / Last Updated 2026.10.31

If you enjoyed For Someone, By Someone...

Ruria0827의 Black Lily and White Lily
20.4K
Black Lily and White LilyTwo nations locked in a long war. Which side will you choose?
#ProjectSekai#TsukasaTenma#RuiKamishiro#KanadeYoisaki#MizukiAkiyama#MafuyuAsahina#AkitoShinonome#ToyaAoyagi#PJSK#2026Halloween
@Ruria0827
tyana1012의 World of Black and White Lilies
589K
World of Black and White LiliesI made this because I'm obsessed with White Lily/Black Lily! Only my favorite characters are here! Sorry not sorry☆
#WhiteLily#BlackLily#KnightAU#TsukasaTenma#RuiKamishiro#ToyaAoyagi#MizukiAkiyama#MafuyuAsahina#KanadeYoisaki#ProjectSekai
@tyana1012
diss0nance_의 Knight AU
46.9K
Knight AURoleplay as you wish.
#ProjectSekai#KanadeYoisaki#MizukiAkiyama#AkitoShinonome#MafuyuAsahina#RuiKamishiro#ToyaAoyagi#Parody
@diss0nance_
nekonomitisirube의 Lilies That Cannot Intertwine
75.7K
Lilies That Cannot IntertwineWhite Lily and Black Lily: two nations that cannot coexist.
#ProjectSekai#WhiteLily#BlackLily#DerivativeWork#StoriesWithCats
@nekonomitisirube
PinkPatch5607의 25:00 (Everyone Likes You)
10.2K
25:00 (Everyone Likes You)This might be a bit of a character break, but I'd appreciate it if you enjoyed it anyway!
#Nightcordat2500#25ji#PJSK#ProjectSekai#ProjectSekaiColorfulStage#YoisakiKanade#AsahinaMafuyu#ShinonomeEna#AkiyamaMizuki
@PinkPatch5607
rostmine-06372의 Investigation Gone Wrong
20.4K
Investigation Gone WrongWhat was supposed to be a simple investigation of the Seven Wonders...
#ProjectSekai#MinoriHanasato#MafuyuAsahina#RuiKamishiro#MizukiAkiyama#ToyaAoyagi#EnaShinonome#KanadeYoisaki#SakiTenma#SevenWonders
@rostmine-06372