Suna no Shita no Suimyaku

A collection of oneshots falling on the darker, more depressing side of yaoi:

1. 0.02
2. Biter

3. Trillium
Ryouji is a college professor who is having an affair with Yuzuru, one of his students. One day he asks Yuzuru to live with him, but the next time they meet, Yuzuru coldly breaks up with him. Yuzuru then proceeds to treat Ryouji in ways Ryouji never imagined he would -- as if Yuzuru has become a whole different person. (from Trine)

4. Frosty
5. Shunshou Ataisenkin
6. Suna no Shita no Suimyaku
(Source: MangaUpdates)