GuessAnime.

1. Mugongeuro Level Up-aneun Mawangnim

"Demon King"

That was the title they used to call me in my past life before I became human.

Mugongeuro Level Up-aneun Mawangnim is currently publishing . It is also Known as: Demon Lord’s Martial Arts Ascension, Martial Demon King

2. Oroka na Tenshi wa Akuma to Odoru

Masatora Akutsu has just transferred into class in Japan from a long way away—all the way from Hell, to be exact. Akutsu is a demon who's come to Earth to find someone who can motivate the forces of Hell to fight back against the invading Heavenly army. He immediately sets his sights on one of his classmates, the kind and beautiful Lily Amane, but ends up in way over his head when it turns out Lily has some secrets of her own!

The Foolish Angel Dances with the Devil is currently publishing . It is also Known as: 愚かな天使は悪魔と踊る, The Foolish Angel Dances with Demons

3. Lord of the Mysteries

Waking up to be faced with a string of mysteries, Zhou Mingrui finds himself reincarnated as Klein Moretti in an alternate Victorian era world where he sees a world filled with machinery, cannons, dreadnoughts, airships, difference machines, as well as Potions, Divination, Hexes, Tarot Cards, Sealed Artifacts… The Light continues to shine but mystery has never gone far. Follow Klein as he finds himself entangled with the Churches of the world—both orthodox and unorthodox—while he slowly develops newfound powers thanks to the Beyonder potions.

Lord of the Mysteries is finished and has null Volumes and 65 Chapters.

4. Emo x Tianshi Buneng Youhao Xiangchu

Demons and angels are two opposite races. As the times change, they are tired of fighting. In order to coexist peacefully, they decided to start a marriage plan! The plan has a one-year observation period. If the devil and angel still cannot get along well, the marriage will be cancelled. As a result, Jiacheng and Yu Shanshan were "luckily" selected by lottery as marriage partners, and started a "happy" cohabitation life with the destination of divorce.

Source: MU

Demon x Angel, Can't Get Along is currently publishing .

5. Yasei no Last Boss ga Arawareta!: Kokuyoku no Haou

The year is 2800 and Lufas Maphaahl – The Black-Winged Tyrant, Great Conqueror, and leader of the Twelve Heavenly Stars – has returned.

A man wakes up in the body of his MMO character 200 years after her defeat during an player-made event in the game, Exgate Online. Now, he's stuck in her body. But this isn't a game, it's real. With her reign long over, and her legacy one of fear, Lufas must journey through the world of Exgate, looking for answers, possible comrades, and all the monsters her “death” unleashed upon the world...

A Wild Last Boss Appeared! is currently publishing . It is also Known as: 野生のラスボスが現れた！黒翼の覇王, 야생의 라스트보스가 나타났다!

6. One Room, Hi Atari Futsuu, Tenshi Tsuki.

Shintaro Tokumitsu is a high schooler living all alone, but things take an unexpected turn when a girl named Towa shows up on his balcony! Not only is she incredibly pure and sweet, but there’s something different about her—something… divine. Just who is Shintaro’s new roommate, and what adorable high jinks lie in store?!

Studio Apartment, Good Lighting, Angel Included is currently publishing . It is also Known as: ワンルーム、日当たり普通、天使つき。, One Room, Naturally Lit, Comes With Angel, 單間, 光照尚好, 附帶天使, หนึ่งห้อง สองหัวใจ อุ่นไอรัก

7. Your Wings and Mine

Shealtiel is an angel who just can't get things done, and he's just been given an assignment to kill a demon — will he be able to do it?

Your Wings and Mine is finished and has null Volumes and 134 Chapters.

8. Fairy Tail: Happy no Daibouken

Happy of Fairy Tail was summoned to another world and became a hero! And its inhabitants aren’t human … They’re animals, with ears and tails to match! Guided by a mysterious talking heart, Happy soars through the skies of this new world, helping the friends he’s making along the way, like a cute bunny, an alluring fox, and even a dog that scares him! What is this place? And will Happy ever make it back home to Natsu and the rest of Fairy Tail?!

Fairy Tail: Happy's Great Adventure is finished and has 8 Volumes and 80 Chapters. It is also Known as: フェアリーテイル ハッピーの大冒険, FAIRY TAIL ハッピーの大冒険, Fairy Tail: Happy Adventure, Fairy Tail - Happy's Heroic Adventure

9. Watashi no Angela

On her way home, a young woman discovers a human-looking angel, whom she decides to welcome into her home.

You Are My Angela is finished and has null Volumes and 4 Chapters. It is also Known as: わたしのアンジェラ, Watashi no Angela

10. Miss Angel and Miss Devil

The story of angels who don't behave like angels and devils who are kinder than them. A new romance begins!

Miss Angel and Miss Devil is currently publishing .

11. Saihate Quartet

Angels descend upon Japan! They’ve come to deliver the Japanese people from demons, who have taken the music industry by storm. But their master plan is to shoot for stardom as idols?!

Stan for Salvation is finished and has 2 Volumes and 23 Chapters. It is also Known as: サイハテ四重奏, Saihate Quartet

12. Lord of the Mysteries

With the rising tide of steam power and machinery, who can come close to being a Beyonder? Shrouded in the fog of history and darkness, who or what is the lurking evil that murmurs into our ears?

Waking up to be faced with a string of mysteries, Zhou Mingrui finds himself reincarnated as Klein Moretti in an alternate Victorian era world where he sees a world filled with machinery, cannons, dreadnoughts, airships, difference machines, as well as Potions, Divination, Hexes, Tarot Cards, Sealed Artifacts…

The Light continues to shine but mystery has never gone far. Follow Klein as he finds himself entangled with the Churches of the world—both orthodox and unorthodox—while he slowly develops newfound powers thanks to the Beyonder potions.

Like the corresponding tarot card, The Fool, which is numbered 0—a number of unlimited potential—this is the legend of “The Fool”.

Lord of the Mysteries is finished and has 8 Volumes and 1430 Chapters. It is also Known as: LotM, 诡秘之主

13. One Room Angel

There are a lot of things that Kouki doesn't have - no hobbies, no friends, no lover, no stable job, and no will to live. So when a random tussle with some kids gets him stabbed, he thinks maybe this is finally his ticket out of this crappy life. But just as he's about to pass out he sees a beautiful "angel"... How is Kouki supposed to cope when less than a month later, he's mysteriously healed, has astronomical bills to pay, and suddenly has the same beautiful angel as his amnesiac roommate?

One Room Angel is finished and has 1 Volumes and 8 Chapters. It is also Known as: ワンルームエンジェル, One Room Angel

14. Yasei no Last Boss ga Arawareta!

The year is 2800 and Lufas Maphaahl – The Black-Winged Tyrant, Great Conqueror, and leader of the Twelve Heavenly Stars – has returned.

A man wakes up in the body of his MMO character 200 years after her defeat during an player-made event in the game, Exgate Online. Now, he's stuck in her body. But this isn't a game, it's real. With her reign long over, and her legacy one of fear, Lufas must journey through the world of Exgate, looking for answers, possible comrades, and all the monsters her “death” unleashed upon the world...

A Wild Last Boss Appeared is finished and has 9 Volumes and 22 Chapters. It is also Known as: 野生のラスボスが現れた！, Wild Final Boss Appeared!

15. Mireusinhwajeongi

At the end of the war... the chosen one shall save the world! Gods and legends battle amidst the coming apocalypse.

The Chronicles of Apocalypse is finished and has null Volumes and 100 Chapters.

16. One Room Rakuen

Similar Manga like One Room Rakuen

One Room Rakuen is finished and has null Volumes and 1 Chapters. It is also Known as: ワンルーム楽園, One Room Rakuen

17. Tenshi Girl

One day, Sayaka finds a banana on the street, which is summarily consumed by a loitering Yoshiko. Later that night, Sayaka is visited by the spirit of the banana, who transforms her into an angel and tasks her to go help souls in need. She eventually winds up at A-kun's house, where she now has to grant his true heart's desire... to marry Sayaka?

Source: Irodori Comics

Angel Girl is finished and has null Volumes and 1 Chapters. It is also Known as: 天使ガール, Aho Girl dj - Tenshi Girl