Yosselyn's manga / #Succubus(1)

Uchi no Koakuma-kun

Ongoing | Yokozawa | 2019 released

Uke is a succubus (demons who have sex with humans to drain energy) but is still too inexperienced and a novice, one day he wants to prove he can be a good succubus and looks for a men to drain his energy, but the guy(seme) turns out to be a sex addict and even the little demon can't handle him