I found my best friend's girlfriend in a doujin porn. Kazuya and I are best friends, attending the same university and seminar. Noa-chan is two years younger, a sophomore, and Kazuya's girlfriend. I was actually planning to confess to Noa-chan. But Kazuya beat me to it and made her his... Well, he is handsome and popular in the seminar, so I guess it can't be helped. If I had confessed first... If I had been dating Noa-chan... That's just wishful thinking, meaning nothing but regret for me.