Reincarnated as Food for Monster Girls.

Reincarnated as a magicless human with infinite vitality, Leon becomes a never-ending-meal for a hungry harem of monster girls. Vampires, succubi, and other dangerous beauties surround him. Every feeding makes them stronger, more powerfull and a lot needier. All while Leon tries to become a real hero in this new world. Ecchi feeding scenes, a detailed magic system, action, comedy, and a wide cast of monster girls. Also all art is by me, planning to get the it commissioned one day, but I'm learning in the meantime. — Description from novelcodex.org