Just played it.
- There are 2 new girls: Melinda (I don't know from where she is; a green-eyed, blonde girl with bracers) and Gwen. You meet Melinda and Gwen at the beach house. Gwen stays there, Melinda moves to the new location (Dining). Gwen acts quite differently from the other girls!
- New location: Dining. You meet a guy wearing a sack on his head that sells you stuff and Melinda. There's an accessible kitchen and bathroom. Outside, there's Hana fixing her mech and a new scene (sadly, it has absolutely no sense and it happens just because... yes)
- New quests involving Francine (you'll meet her older version), Al (the security gal), Frankie, and Gwen
- There's a bug with Frankie's quest: after you choose a bikini for her, you two can have fun at the pool at night. However, it'll stay stuck in a scene loop. Be sure to save your game before heading to the pool at night!
also, the 'love' meter can't reach the top.
- There's also a bug that the mouse cursor will become invisible for some reason