If you're looking for anime similar to The Selfish Demon King (Light Novel), you might like these titles.
"I've always...wanted to touch you." The dashing prince meets me, the loser rival love interest. Although we should be fighting over the heroine...why does the prince have his sights set on me?!
After getting shot, Gozu wakes up in the world of a game that he loves… There he meets his favorite character, the final boss of the game 'Demon King Evelogia'! "I fell in love with you!" Gozu confesses to Eve and…!?
Sayama is a gloomy guy that wears a mask to school every day. What will happen when bad boy Saikawa attempts to rip it off?!
The story begins with Masaki Michishita, an ordinary prep school student who is rushing to the bathroom in a park one day. Despite his rush, he spots Takakazu Abe, an exceedingly handsome auto mechanic sitting on a bench. The two exchange looks, and after Abe utters "Yaranai ka" (Shall we do it?), the two begin their encounter.
When Princess Syalis is abducted and taken to the demon king Twilight's castle as a hostage, neither the castle's demonic ruler nor his subjects realize the trouble they've brought upon themselves. The deceptively adorable princess is actually a holy terror who has no difficulty sneaking out of her cell, destroying property, and murdering the creatures she comes across all for the single-minded purpose of getting a perfect night's sleep. The dumb-as-rocks hero Dawner has been sent to rescue Syalis and bring her home, but his mission seems unlikely to succeed anytime soon; and in the meantime, the demons must deal with their ruthless royal prisoner constantly causing an uproar in the castle. While the princess rests in peaceful slumber, her captors may never sleep again!
Thanks to the incredible last words of his grandfather, young and adorable Makoto's virginity is the target of every teacher who wants to be principal of his school! Will fleeing to the mountains to recruit his childhood friend Kintaro be the answer to his prayers... and wildest fantasies?
The fifth season of Fudanshi Shoukan: Isekai de Shinjuu ni Hameraremashita Mini Anime.
The fourth season of Fudanshi Shoukan: Isekai de Shinjuu ni Hameraremashita Mini Anime.