Koi Wa Etude!
Complete | umi tomoshibi | 2000 released
this baka couple; i love them! finding out that one of his fellow students is actually an idol, lol, poor kid gets blackmailed with a picture; but spending time with him, he realizes he isn't such a bad guy; and well as you know they falls in lovessss~ aww, they're so precious and so adorable when they're jealous and blushing, lol, though i also admit that was quite a quick transition, they literally confessed then had sex.
Let Me Fall In Love With You