某天成为妹妹 — Steam game overview

Stored observation / content update: 2026-10-25T05:21:20.000Z

《某天成为妹妹》是一款短篇galgame。在期中考后，林煦接受了夏璃的告白，二人成为了情侣。但双方父母却因家长会相识相认相恋，两个单亲家庭阴差阳错成为了一家人——校园情侣竟成兄妹？！甜蜜轻快的恋爱日常，奇妙的身份重叠，由此展开！

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

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