k_hello_k's manga / #Student x Student(16)

Misunderstanding, seme thinks uke is someone else. Uke has a twin that sleeps around a lot

Seme is ukes online friend that he has a crush on. Seme pretends to be two different people so that uke forgets about semes online personality. Seme ends up falling in love with uke, but hurts him the process.