Kouun no Incident

Shibata, a high school student, is prone to “lucky sukebe". He says he is lucky, but he is shunned by girls and nothing good ever happens to him. He was fed up with such a daily routine. He meets Tachibana, who has the constitution to “get” lucky sukebe. Tachibana is a good-looking guy who is looked up to by all the girls, and Shibata is growing jealous of him. However, unexpectedly, he and Tachibana have a lucky sukebe! He has never had sex with a guy before, but..?