The manga presents itself like every character has secret motivations and are scheming to get what they want. However by chapter 3 it just falls flat and devolves into Orgy House: Otaku Edition. Our MC is a mastermind because he plays chess very well. I knew a kid throughout school who would shart his pants and then touch it and smell his hands afterwards, and his favorite game was chess. So your mileage may vary whether you can suspend disbelief. Although to be fair some of MC's facial expressions reminded me of Sharting Shane.
The girls are pretty cute though. I wouldn't mind giving them some of my rich conglomerate if you know what I mean.