In some parts and before it got to the climax (the latest few chapters), Ilegenes had some really slash scenes :
Exhibit A
Exhibit B
Exhibit C
Exhibit D
Exhibit E
Exhibit F
Exhibit G

Note: I left out some other slashy stuff that happened in between.

As for my comment for Exhibit E, I swear they're just going to play chess! It's 100% true. But... that's what they said. >.>

HOLY GOD, REN-TAN, I'M IMMENSELY GRATEFUL TO YOU FOR POINTING OUT THE SLASHINESS OF ULTIMO.

WERE IT NOT FOR YOU, I WOULD NOT NOW BE TYPING IN DELIGHTED CAPSLOCK. <3

ALSO, IS THE MANGAKA'S OTHER WORK JUST AS SLASHY? (E.G. SHAMAN KING?)