Hentai Manga like Gyomanui Chosang

Merry Psycho

Also known as Her Merry Obsession.

Status: Releasing
Genres: Drama , Romance , Thriller

For two blissful years, So-Ryung's world revolved around her husband—until he vanished without a trace. In her search for answers, she learns the heartbreaking truth that he was never hers to begin with. But she’s not about to let him slip away, even if he is a black ops agent with a hundred faces…

Kkocheun Mikkiya

Also known as Flower of Allure.

Status: Releasing
Genres: Drama , Mystery , Romance

I-Yeon wanted a quiet life as an arborist—but hidden upstairs is a comatose killer who once tried to murder her. When he wakes with no memory, she panics… and lies: "I'm your wife."

Can she survive the man who doesn’t remember her—or what he did?

Yeonswae Sarinmaui Anaero Saranamgi

Status: Releasing
Genres: Fantasy , Horror , Mystery , Romance

She fell into a sinkhole that suddenly appeared on her way home from work and became possessed by the character in her favorite horror game, The Devil's House. And to top it all off, she was the very first victim of a psychopathic serial killer! “You’re quick-witted, aren’t you? I was planning to get rid of you right away if you made any noise.”
Silas said this with a bright smile on his handsome face. However, the meaning behind those words was so chilling that it sent shivers down her spine. How could she survive? She tried to think it over with her hair turned white, but having not yet seen the ending, she had no idea. Then... “H-Honey! Don’t you remember me?”
To survive against the amnesiac psychopath, she decided to pretend to be his wife.