Akuma ga Kitarite
Summary from MyAnimeList.net Akuma ga Kitarite (悪魔が来たりて, When the Devil Falls in Love); Ruiji is secretly in love with Wakatsuki. But how can he declare his love when this one is frightened to death every time she meets his eyes? Short story of Kimi Ni Koishitei Desu Ka (long, ongoing version)
GuruGuru Meguru
From today, Meguru Kinosaki is a freshman in highschool. But it's not only that she hasn't had a first love yet; she's in fact a clean girl who's never been in touch with any guy apart from her older brother Toshiya. With this pure Meguru, her classmate Yuuma falls in love at first sight. He starts a determined attack, but the over-protective big brother blocks his way! Now Meguru's days start to turn around between a big brother with a sister complex and a pushy boy.
Kimi Ni Koishitei Desu Ka.