From Midnight Scans:

Mei has been living alone since her beloved older brother, Saeki, died. Suddenly, a guy named Reon came and abducted her. Why do they have to live together? No matter how Mei hates malicious Reon, another feeling starts to appear. Then, Saeki, who was thought to be dead, returned!

From Chibi Manga:
A girl who dreams of fated meetings - Kizuna. The one she met in a suspicious western-style house, the "Yuurei Library", was a good-looking but demon-like young man - Ruu. On top of that, Ruu has an unbelievable secret...! A cursed love hidden in the masterpiece "Romeo and Juliet". Searching for a new ending, the gears of fate have started to move--!?

From Sapphire Sky: Saijou Kiki is a model and child star, but with the release of her new commercial, her popularity skyrockets. At school, she harbours feelings for Takumi-kun... but she somehow ends up kissing Teppei, his friend?! And what's more, they've switched bodies due to some sort of old legend?! From Chibi Manga: Everyone is talking about Saki since she acted in her first CM. She's in love with Takumi, who's in the neighbor boys high school: Sashirou High school. One day, she fell in the stairs and incidentally kissed Teppei, a student of Sashirou High School. That's a big shock! but something started to change inside them...