Demon King is Way Too Overprotective! Vol. 3, The

DIE, MY DARLING!
Seina’s love life has taken a real turn on what was supposed to be a routine class trip.
After sharing a kiss (or five) with Damon, she realizes how deep her feelings for him run. And he’s been returning those feelings tenfold! It’s almost too much for a girl to take.
Then, on a nighttime stroll with her longtime friend Shion, the truth comes out—he’s part of her shared history with Damon. Not only that, he wants to kill her and make sure she never comes back! The only way to break the cycle lies in Damon’s hands, but will he be able to make that sacrifice?
Series Overview: Yamada Seina’s life is already teetering on the edge—between juggling high school, managing her friendships, and covering her rent solo, she barely has time to breathe. But when she nearly falls prey to a scammer and loses her hard-earned rent money, things go from bad to worse. Just when it seems like she’s hit rock bottom, a mysterious (and incredibly handsome) stranger with horns swoops in, claiming he’s a demon king who’s crossed dimensions just to be with her. Why?
Because, according to him, Seina is the reincarnation of his lost love!
Skeptical but unable to shake him off, Seina finds herself with a new, otherworldly roommate who’s hell-bent on keeping her safe, whether she wants his protection or not. What’s a girl to do when her biggest problem suddenly becomes a supernatural—and superhot—roommate?