Looking for slashy 日本动漫 & 日本漫画 with actual plots.

I'm not looking for 矢追 或者 BL (shounenai) romances, I'm looking for something plot-focused that just happens to be slashy, even better if it's supposed to be a shounen, jousei, 或者 seinen series. It can also be pure intentional 或者 unintentional fanserivice with the characters not really liking eachother (that just makes it hilarious). Lastly, it can also be a gag series for the lulz with no real plot.

Examples:

*Gensoumaden Saiyuki.
*Kuroshitsuji (Black Butler).
*GetBackers (anime way moreso than the manga).
*Hunter x Hunter.
*Diabolo.
*Li Ling-Po.
*Gouho Drug / Legal Drug / Drug & Drop.
*Wild Adapter.
*Petshop of Horrors.
*Gintama.
*Yami no Matsuei.
*Kyou Kara Maou.
*RG Veda.
*Demon Diary.
*Earthian.
*Loveless.
*Vampire Game (He's bisexual).
*Vampire Doll.
*Axis Powers Hetalia.
*Eroica Yori Ai wo Komette / With 爱情 from Eroica.
*Patalliro.