Thicc First.
Beat up some fairies, BEAT UP not Lewd, make sure you have a Bottle, Collect the Dust, to the Deeper Parts you will find a Glade with a Statue, spray that with Fairy Dust, Gift her Milk, and then Play her little Game, Win and ask for Thiccness.
UNA residential is Closed for now, You go in through a Cutscene with Fawn.
Hang Out with Fawn till she leaves her Room, and you alone, be a Rat and look around her room, get a Card, go to the Torture Rack, I'd recommend NOT to Give them the Card, wait outside...
Return to your Condo, Sleep, Hang Out with Fawn, Confront her about It, Say Sorry you Rat!!!
She will ask you to Follow her, Do what you want here, return to her Condo after sleeping, talk to her About it, ask her about it, Ask to Join, based on your Choice it is Either Free, or you could be a Pimp about it, Sleep for a Day, Return to the Torture Rack, Talk with Fawn, in the Basement, go to Sleep, Return to the Torture Rack, get your First Session.
Renovations is Possible after Beating the Don, Via New Ark, Hardware R Us, top left main floor, 10k Bits costly but Worth it, Beating the Don in the Past required Fawn, to finish, but Updates say you can do it without her so you can go Ahead, it is Skill Check Intensive so look for Lin-Lin, at a Massage Parlor, Sammy, at a Bathhouse.
Lin-Lin, needs you to beat her at a Fight, or get a Happy Ending.
Sammy, you shower a few times till she gains interest to Invite you to a One-on-One shower + Good Ending.
