Midnightmare

Grey, a Night Hag that enters the dreams of humans to feed off of their souls, makes it part of his post-meal routine to visit the human, Ethan, a regular at the cafe that Grey works at. Though he puts Ethan to sleep and tucks him into bed every night, he has no desire to enter his dreams. However, when the Lamians appear before them, fate begins to take a foreboding turn...

(Source: BOMTOON, translated)