SPOILER
What is the code to the basement in ending B?
Mint's birthday. It's on the bloody note in the book on the remaining bookshelf. It's cute how they both used each others' birthday on their locks. :)
I looked up a playthrough to finish it about a week ago but thanks regardless!
For some reason I can't go back to the previous room and I didn't think to check everything so I was stuck lol
Agreed, it's really wholesome!