記憶の鍵盤 — Steam game overview

Stored observation / content update: 2026-11-06T22:35:12.000Z

A boy who can no longer hear the piano, living in the shadow of his gifted younger brother; a karate girl who is more than a friend but not yet a lover; and a girl with future memories. As past and future entwine, where will this triangle lead in this fleeting, bittersweet summer love story?

Game metrics below are stored observations; missing values are unknown.

Revenue is modelled, not confirmed sales. See the methodology and uncertainty range.