Kimi wo Ubau, Kimi wo Aisu

From TCManga:
Yuuki changes schools and finds her childhood friend who she thought was dead is now alive, but is it really him? A dark tale of lust, loss and lasting love.

Bitoku no Yoromeki: As a deal for saving her fathers' company, Shizuku is forced to work as a maid for powerful Kiryuu. Will he just use her or will he understand her heart?