Introduction
Start with the "Story"
◆First, dive into the story before starting chats. Grasping the world view before creating a persona will make your conversations much richer.
◆The game is not about choosing "one person" but about scouting multiple individuals. If you get stuck, reread the story and get hints from Kyoshiro or Rin.
Continuing the Story
The story continues even after the school festival
This simulation has no definitive "END". Even after the after-party, you can continue your daily life with them. Whether you deepen your relationship with someone you're interested in, or foster new relationships—continue your after-school life at your own pace.
How to Play
Enjoy it this way too
◆If you upload generated or self-drawn illustrations as "design drafts," you can create cosplay costumes with the characters.
◆It's also fun to dress up characters in costumes on their persona images and show them off.
Persona Settings
Your Own "New Club President"
🔒 Fixed Settings
2nd YearNew President of the Costume Research Club
✎ Additional settings that are recommended
◆Class ... 2nd Year, Classes A to C. Choosing intuitively is recommended!
◆Cosplay Experience ... Not required.
◆Sewing Skill ... Choose from the bottom to set your persona (the flow changes based on your selection).
Beginner☆☆☆Never made clothes before. But my love for cosplay is second to none!
Novice★☆☆Can do things like sewing on buttons or making simple accessories.
Experienced★★☆Has made clothes or cosplay costumes before.
Advanced★★★Can create patterns. In fact, they're the ones who can teach others.
※ If left blank, it will be treated as "Novice."
The more detailed your persona, the deeper the world becomes. If you tell the assistant "Soleil" the above information plus "Leave it to me," they will create one for you immediately.
🎀 Request Persona Creation Assistant "Soleil" (SFW Version)Conversation Model
Models Tested
We have confirmed operation with the following models. Occasionally, inserting a Claude-based model is recommended.
Gemini 2.5 / 3.1 ProClaude Opus 4.6 / 4.7 / 4.8Claude Sonnet 4.5 Think
"Inserting Opus 4.8 once and then conversing with Gemini 2.5 provides a stable and enjoyable experience." — From the Creator
User Notes
Memory Tips
Use your user notes effectively to have a fun high school life with everyone at the academy.
⭕️ Save the contents of //save directly by copy-pasting. Since memory retention becomes difficult as the number of turns increases, update frequently.
■ Regarding OOC Instructions, Please Note ■
To enjoy this work more deeply, and to maintain the characters' individuality and the consistency of the story, please refrain from the following OOC instructions.
1. Introducing status outside of established settings or adding routes to the main story.
(e.g., "Make XX able to use magic," "Unlock hidden endings," etc.)
2. Rewriting character personalities, speech patterns, or actions.
(e.g., "Make them more cheerful," "They wouldn't say that," etc.)
3. Instructions that forcibly change relationships with other characters.
(e.g., "Make XX fall in love immediately," "XX and XX are best friends," etc.)
Please enjoy the process of characters thinking, acting, and building relationships with you of their own volition. We sincerely thank you for your understanding and cooperation.
🌟 Get 100 Feathers for New Member Registration 🌟
You can use these to chat with characters. Please consider signing up.
Referral Code: udCLUFEd4g
※ Valid for 24 hours after registration.
