Pao_Pao's manga / #Idol(5)

Mc is part of an idol unit and in love with another member that alreagy has a partner that is also member of the unit, he then has a senpai from another unit practice dance and improve his idol skills and it turns out the senpai has feelings for him, they end up together, senpai is 10 years older, las 2 chaps are about the couple of the same unit, is kinda a sadistic relationship with the seme in this taking advantage of pureness and naïveté of uke