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某天成为妹妹 Uses AI 《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！
Positive Now
91%12 reviews on Steam
30-Day Trend
—Not enough history yet (since 21 Oct 2026)
Last 12 Months
92%positive, 13 reviews
Reviews Last Month
0July 2026, −100% on the 5-month average
Reviews By MonthPositive and negative reviews each month, January 2026 to July 2026
| Month | Positive | Negative | Share positive |
|---|---|---|---|
| July 2026 | 0 | 0 | — |
| June 2026 |
| 0 |
| 1 |
| 0% |
| May 2026 | 1 | 0 | 100% |
| April 2026 | 0 | 0 | — |
| February 2026 | 2 | 0 | 100% |
| January 2026 | 9 | 0 | 100% |
Steam’s own monthly review graph, read each month. How we count
Review SentimentReview ScoreSteady at 91% positive since 21 Oct 202612 reviews when we first checked
Steam’s review score each time our store check saw it change, since 21 Oct 2026. How we count
Notable Months| Notable | Month | Reviews | Positive |
|---|---|---|---|
| Busiest month | January 2026 | 9 | 100% |
Best and worst counts months with at least 50 reviews.
