Okay finally read to ch 38.
I still think MC is POS but to a lesser extent(slightly). He is basically playing around with 3 girls, i do not know if the girls know something (wouldn't be surprised in that kind of manga that girls had some strategy meeting of sorts later on i will tell why).
Story is very artificial and events feel as plastic plants in someone's room, they look nice but that's that, no practical use. Every event and interaction is perfectly placed for convenience.
I really was horny after reading this, quite a rare sight. Women are quite skillful in creating something really erotic via literature, men er greater at visual stimulation. Here? Author is a good drawer of erotic pictures and erotic dialogue (and situations). Basically speaking it would be a nice hentai, the art, the dialogue, the situations are erotic. But when taken with sober mind it's scummy overall, by situation it's cool but when looked overall other situations with all other girls....it's not something you should feel good about.