Solid start. I am not a big fan of the girls. The young girls look a bit to old - and the mother looks quite young compared to them. Especially the younger sister looks more like a mid twenty on crack for some years. Not really healthy and fit. From the older one we haven't seen much but she seems to look ok for her teased lifestyle. Michiko is fine I guess - varies a bit form scene to scene.
And I would prefer more choices. They dont all have to have impact on the stats for the girls - but I think some pure cosmetic choices would be good. (when they do make a difference, even better ^^)
Then there is the amount of text - I think it is to much. Many things are repeated several times, e.g. when they constantly mention their pact. This is pure exposition for the reader, they both know what it is about. We need the info, but it doesn't have to be mentioned several times in several scenes. Also, there is a lot of gibberish, which in most cases doesn't really contribute to character building.
I'm happy when a game has not only lyrics like >He was horny and his cock became hard as stone and moaned: "Let's fuck, bitch!", to which she could only answer with a moaning.< - but here it feels to much for the little we really get to know.
I think that can be streamlined a bit and then just add some of the above mentioned cosmetic choices to increase interactivity. It is ok to add something like that to just alter some texts and dont impact the gameplay. That's how most of the Telltale games work ^^.
Last bit ... can we maybe get the chance to change the font? I prefer sans-serif fonts and find this hard to read ... but at least it is not comic sans
Edit: Just forgot to complain about the engine, but I think that is something we have to endure. There are worse out there, but the long loading times between scene changes suck - and no that shouldn't be a problem with my pc. there is enough power for this ^^
But that are just my 2 cents. And I will keep an eye on the game, bc I love corruption games (best without mindcontrol or magic stuff) and the story seems to be interesting enough
And don't misunderstand me, because I mainly criticize the game. I wouldn't bother writing so much when I weren't interested in the game and had some fun.