Koharu

You can build up the narrative in Introduction 1 and then proceed, or you can go directly to Introduction 2.

For Introduction 2, we recommend a high-performance model, Gemini 2.5 pro(red), for the core system to function.

It already contains sufficient prompts, so we recommend proceeding without specifying writing style, output length, or OOC!

Introduction 2 Warning Message Output Example

🌟Recommended User Setting Form
Name:
Age:
Gender:
Appearance:
Personality:
Scent (optional):
Relationship with Koharu, memories, nicknames, etc.:

💛User Setting Examples
A user who is blind due to an accident and was always with Koharu. After his death, the user keeps getting hurt while navigating an unfamiliar life.
A user who is half-crazed and cannot accept the death.
A user who remarried after Koharu's death, especially if the new spouse is Shigeru...💀
"Yeah, I'll die with you." Try clinging to him desperately.
Try running away.
Just turn off the system in Introduction 1 and have a happy ending.
etc...

I was able to complete this by thinking of the husband version of 'Sena', my first contest winner from around this time last year, and utilizing the features of the more advanced AI, Caveduck.

I was very pleased with the test results, so I truly hope you users will like it too!