When Minoru's parents ran out on him and their debt collectors started shaking him down, it was the kind lady next door who took him in. She offers to have him live with her, but she seems awfully excited about the idea...and suddenly Minoru's wondering just what he got himself into!
She's Adopted a High School Boy! has finished publishing and it has 362 Chapters. It is also Known as: : 男子高校生を養いたいお姉さんの話, The Story of an Onee-San Who Wants to Keep a High School Boy
Genres: Comedy , Ecchi , Romance , Slice of Life , Shounen , School Life , Harem
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Top 5 Manga Like She's Adopted a High School Boy! (Danshi Koukousei wo Yashinaitai Onee-san no Hanashi.) [2025 List]
5. Seitokai Yakuindomo
Ousai Academy was originally an all-girls high school. Due to the declining birth rates in recent years, it was converted into a co-ed school. The first year male students would find themselves surrounded by girls and unfortunately, Tsuda Takatoshi is one of them. What's worse, he gets scolded on his first day by the student council president Shino Amakusa, which did not give a good first impression of him. Tsuda also meets the other student council members while getting scolded, and in the end, he gets late for class. As an apology for ruining his morning, Shino lets him join the student council for various of "reasons" and he accepts it, or rather, he's forced to accept. Thus begins his days as Tsuda soon realizes that he's the only normal student in Ousai Academy...
Note: The first 15 chapters were published in Magazine Special. It switched to Weekly Shounen Magazine starting with Ch. 16, with the chapter count being reset. This entry still includes the first 15 chapters from Magazine Special.
Seitokai Yakuindomo has finished publishing and it has 655 Chapters. It is also Known as: 生徒会役員共, Seitokai Yakuin-domo
4. Kanojo mo Kanojo
Mukai Naoya has loved Saki Saki since grade school, and when she finally accepts his feelings, he's at his happiest. But one day, a cute girl named Minase Nagisa confesses to him! Not wishing to choose only one over another, Naoya chooses to go out with both of them!! What will be of this love triangle that challenges morality itself?
Girlfriend, Girlfriend has finished publishing and it has 144 Chapters. It is also Known as: カノジョも彼女, Girlfriend and Girlfriend, Her, and Also Her, Two-Timing Fair and Square
3. Maou ni Natta node, Dungeon Tsukutte Jingai Musume to Honobono suru
Before I realized, I had become the guardian of a dungeon, a Demon Lord. I was suddenly in a dangerous world with giant monsters loitering around, fighting for their existence, so I thought to go about developing the dungeon in order to not die but —- for some reason I was having quite the good time…. How did it turn out like this?
The protagonist, Yuki, having to live in that world now, uses his bold and sharp senses and spends time with a supreme dragon girl and a vampire girl; Sometimes laughing, sometimes being angry, passing days doing what he likes.
Now I'm a Demon Lord! Happily Ever After with Monster Girls in My Dungeon is currently publishing and has Chapters. It is also Known as: 魔王になったので、ダンジョン造って人外娘とほのぼのする, Maou ni Natta node, Dungeon Tsukutte Jingai Musume to Honobono suru
2. Mahou Sensei Negima!
Negi Springfield, a 10-year-old wizard who recently graduated from Merdiana Magic Academy in Wales, hopes to achieve two things—to find his missing father, who was once known as the Thousand Master, and to become a Magister Magi, someone who helps the everyday world through magic. To reach his latter goal, he is assigned one last task: to teach English at a middle school in Japan.
Much to his surprise and dismay, he not only discovers that his homeroom class consists of 31 girls, but also ends up revealing his true identity as a magician to Asuna Kagurazaka, one of his new students. Negi must now negotiate with the girl and face his most difficult challenge yet—to keep his identity a secret as he tackles magical threats both from within and outside of Mahora Academy, all the while keeping a watchful eye out for his lost father.
Negima! Magister Negi Magi has finished publishing and it has 355 Chapters. It is also Known as: 魔法先生ネギま!, Magical Teacher Negima!, Negima
1. Rosario to Vampire
Aono Tsukune is so hard up on luck, that he can't even get admitted into high school. His parents finally find him a school with no tests required for admittance, out in the middle of nowhere. He finds out the school is a youkai (monster) academy, Just as he is about to resign himself and get back on the bus home, he bumps into a beautiful girl. Turns out this beautiful girl, Akashiya Moka, is also a vampire who bites him right off the bat. They become friends and Tsukune is ready for a happy school life with her, until he finds out that if a human is found on the school grounds, he or she should be killed. Now Tsukune must conceal his identity from the rest of the monsters at school, while at the same time being a ready snack for Moka when ever the urge takes her. What effect will this have on Tsukune and will Moka be able to keep him out of harm's way?
Rosario+Vampire has finished publishing and it has 40 Chapters. It is also Known as: ロザリオとバンパイア, Rosario and Vampire
