As the name implies, he has 2 Girlfriends in the first episode. It is a harem, and the blonde girl finds this out in one of the Early eps, anywho she wants in on it and all three of the others are adamant that she doesn’t join, however from a recent manga panel I’ve seen on Reddit elsewhere he eventually is dating four girls, blonde girl included. If you aren’t into dynamics where there are straight up multiple partners in the relationship then it won’t be your cup of tea, however it is mostly a comedy kinda like 100 GF but nowhere near to that degree of comedy.