I finished the game 1 or 2 weeks ago.
And frankly it's not great, like "Engraved Pleasure", the game seems sloppy with missing possibilities and not complete.
The game mentions guild quests, which I believe don't exist, and areas that can be visited, but which serve no purpose other than to talk to random NPCs who don't contribute anything.
You can "easily" break the game by using Yumi to OS Demons and get rare chests by saving just before and paying back in just a few days (before he can kiss her) + the 10-20K chest which also helps.
The "bully" seemed a little more interesting and better written than most (at first) but in the end no, he just wants to bang the blonde and the hero's sister if we screw up, same goes for the NPCs, some of whom seem to take pity on the hero and want to help him, but there's nothing like that in the game and in the end no one cares if he gets cucked.
I don't recommend the game, the scenes are very repetitive too and not very diversified.