Flower That Blooms in Summer, Flower of Spring Colors

Yuu has quietly admired his homeroom teacher Haruka for years, ever since they were something like childhood friends despite the age gap between student and teacher. Summer vacation was supposed to change nothing. Instead, classmate Kenta starts closing the distance with Haruka that Yuu never could.

The story stays small and personal: one unresolved crush, one rival who actually acts on his interest, and a slow, deliberate erosion of the space Yuu always assumed would stay open for him. It's an RPGM game built around watching that erosion happen rather than stopping it.

You move Yuu through a short summer-vacation stretch, following scenes as Kenta's pursuit of Haruka advances step by step. There's no real puzzle or combat layer here, just a linear string of days pushing toward the same outcome, told from the side character who can't do anything about it.