Blanket permission for all of mine who are... uh. Edible?? 8D; I think that goes for Chitose, Ash, Kakei, Shusei, Claus, Hachi & Gaius. That leaves Riddle and Rosiel.

Riddle is dead, so idk about "life force" per se, but he sure is walking around! Would a "soul" count for "life force"? He's a reaper, but he can "die" a second time too! Uhm. Sougiya Riddle is vague and confusing sometimes.

And Rosiel's an inorganic lifeform... it probably doesn't matter a lot, as I'm pretty sure he's too powerful anyway haha.