If I didn't do the Happy Ending first though, I don't think I could care about the main character. Honestly, he's a total wimp. Even when he got encouraged by the two's past selves, it took so long for him to act on it or even change. I'm mostly just encouraging the girl because she's really cute in that route. I don't know how it'll change things though, since the ritual is still a thing, and he's still moving out.
I believe he is meant to be blank for player to insert himself into - that is why he got no dialogues no thoughts. But that also allows me to ignore his existence and focus on girl. As for ritual i believe the elder sister already did it, Oyama says they will never realize being tricked because they will never talk to each other about it and MC is the supposed to connect the dots in good ending.
Game is very linear follows the simple ntr formule, MC nonexistent side character with 0 willpower,coward,useless. Story pretty much the same nothing extra, stats are for nothing doesn't matter how much you raise it, Art was SuperB and thats it game is mediocore at best. Obviously the Ugly Vagrant/Homeless scenes were the best showing how much the girls falls into corrupted bitches.
The world crafting is masterful, the map brims with life visually and audibly. There so many interactions that tell the girls character and feelings, then as she trends away from MC you can observe change in her through the interactions.
The stats are just to pass the "memory minigame" , the purpose is just to get the player and engage with the world take the girl to places and stuff. I'm thankful that this "gameplay" doesn't overstay its welcome, i don't wanna be grinding stats no thanks.
Story and MC are standard NTR fare.
I wish the game was mediocre because that would mean there is a number of better games then it. If you believe there are i would like a list, ofc we are talking about NTR games.