Wallis says she lives in the 9th floor but when you try to visit here the game says you don't know anyone in there why? Please help how do i find her after talking to her at the pool?
If you're confirmed that you're playing v0.8, Wallis shows up in the park around day 3, in an ice cream truck. Then, after you complete the ice cream truck content, it'll disappear. She shows up at the pool a few days after that.