In a futuristic world where humans and mermaids coexist, ChaO follows Stephan, a mild-mannered office worker at a shipbuilding company, whose life is upended when he is suddenly proposed to by Chao — a princess from the mermaid kingdom. With no time to make sense of what’s happening, Stephan soon finds himself living with the unpredictable, wholehearted Chao. As her sincere love begins to break down his emotional barriers, an unexpected and touching romance begins to unfold.
ChaO has not yet aired. It will air on August 15, 2025. It is also Known as: チャオ, ChaO
Genres: Fantasy , Romance , Mermaid , Contemporary Fantasy
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Top 5 Anime Like ChaO [2025 List]
5. Date A Live
"Before the world ends, kill me or kiss me."
Thirty years before the events of Date A Live, an enormous explosion devastates east Asia and kills 150 million people. This is the first known "Spacequake", an inexplicable natural disaster that has since become commonplace. Fast forward to the future. High school second year Shidou Itsuka lives alone with his cute little sister while their parents are away.
What do these things have to do with each other? While rushing to save his sister from a sudden Spacequake, Shidou is caught in the blast and, in the midst of the chaos, finds a mysterious girl. It turns out that this girl is actually a Spirit, a powerful being from another world whose arrival devastates the surrounding area. Thankfully, Shidou is rescued by an anti-Spirit strike team... led by his little sister?!
This vicious task force is locked and loaded, ready to exterminate Spirits with extreme prejudice. But this violent method is not for Shidou. He discovers the one way to neutralize these Spirits peacefully: make them fall in love. Now, it's up to Shidou to save the world by dating those who threaten to destroy it!
Date A Live has finished airing and it has 12 Episodes. It is also Known as: デート・ア・ライブ, Date A Live
4. Mahoutsukai no Yome
Hatori Chise has lived a life full of neglect and abuse, devoid of anything resembling love. Far from the warmth of family, she has had her share of troubles and pitfalls. Just when all hope seems lost, a fateful encounter awaits her. When a man with the head of a beast, wielding strange powers, obtains her through a slave auction, Chise's life will never be the same again. The man is a "magus,"a sorcerer of great power, who decides to free Chise from the bonds of captivity. The magus then makes a bold statement: Chise will become his apprentice--and his bride!
The Ancient Magus' Bride has finished airing and it has 24 Episodes. It is also Known as: 魔法使いの嫁, The Magician's Bride, Mahou Tsukai no Yome, Maho Yome, MahoYome, まほよめ
3. Spice and Wolf
Holo is a powerful wolf deity who is celebrated and revered in the small town of Pasloe for blessing the annual harvest. Yet as years go by and the villagers become more self-sufficient, Holo, who stylizes herself as the "Wise Wolf of Yoitsu," has been reduced to a mere folk tale. When a traveling merchant named Kraft Lawrence stops at Pasloe, Holo offers to become his business partner if he eventually takes her to her northern home of Yoitsu. The savvy trader recognizes Holo's unusual ability to evaluate a person's character and accepts her proposition. Now in the possession of both sharp business skills and a charismatic negotiator, Lawrence inches closer to his goal of opening his own shop. However, as Lawrence travels the countryside with Holo in search of economic opportunities, he begins to realize that his aspirations are slowly morphing into something unexpected.
Based on the popular light novel of the same name, Ookami to Koushinryou, also known as Spice and Wolf, fuses the two polar genres of economics and romance to create an enthralling story abundant with elaborate schemes, sharp humor, and witty dialogue. Ookami to Koushinryou is more than just a story of bartering; it turns into a journey of searching for a lost identity in an ever-changing world.
Spice and Wolf has finished airing and it has 13 Episodes. It is also Known as: Ookami to Koushinryou, 狼と香辛料, Ookami to Koushinryou
2. High School DxD
High school student Issei Hyoudou is your run-of-the-mill pervert who does nothing productive with his life, peeping on women and dreaming of having his own harem one day. Things seem to be looking up for Issei when a beautiful girl asks him out on a date, although she turns out to be a fallen angel who brutally kills him! However, he gets a second chance at life when beautiful senior student Rias Gremory, who is a top-class devil, revives him as her servant, recruiting Issei into the ranks of the school's Occult Research club.
Slowly adjusting to his new life, Issei must train and fight in order to survive in the violent world of angels and devils. Each new adventure leads to many hilarious (and risqué) moments with his new comrades, all the while keeping his new life a secret from his friends and family in High School DxD!
High School DxD has finished airing and it has 12 Episodes. It is also Known as: ハイスクールD×D, Highschool DxD
1. Hotarubi no Mori e
Intrigued by the tale of a mountain god, six-year-old Hotaru Takegawa loses her way in the ancient forest while visiting her uncle. Exhausted and desperate for help, Hotaru is thrilled to find a masked forest spirit named Gin. She learns the hard way that she should not touch the boy, or he would disappear. In spite of this, Gin leads Hotaru out of the forest and warns her never to return when she promises to come again with a gift.
Paying no heed to his cautionary words, and despite being separated by both distance and planes of existence, Hotaru and Gin become close friends as she visits him every summer. However, their relationship and resolve are put to the test, when romantic feelings conflict with the one and only rule.
Based on Yuki Midorikawa's manga of the same name, Hotarubi no Mori e is a tale of friendship and compromise of two people who should never have crossed paths, as their lives become hopelessly intertwined.
To the Forest of the Firefly Lights has finished airing and it has 1 Episodes. It is also Known as: 蛍火の杜へ, Into the Forest of Fireflies' Light, The Light of a Firefly Forest
