The complete 30-day cycle is playable, leading to multiple distinct endings based on player decisions.
: Player choices and stat management lead to multiple endings. 30 Days - Life with My Sister -v1.0- -PillowCase-
In v1.0, the protagonist has a hidden "Tension" stat. Sleeping on the same floor as Miki increases this stat. However, if you steal the PillowCase (which the game allows on Day 7, 14, and 21), the Tension stat resets, but Miki’s "Trust" stat becomes permanently locked at 50%. You can never achieve the "True Ending" if you touch the PillowCase without permission. The complete 30-day cycle is playable, leading to
Spend a transformative month navigating the delicate, heartwarming, and sometimes chaotic bond of living under the same roof. Every choice shapes your relationship over 30 unforgettable days. Sleeping on the same floor as Miki increases this stat
: High trust allows for deeper interactions and less resistance during night events.