19-year-old Roji Shizuru has a crush on a fellow university student, Nana, but there always seems to be complications when he tries to get closer to her. For one thing, he's afraid his hot friend Tachibana Masaki will steal her. Beyond that, the main complication comes from the interference of children, specifically one odd child called Maida Kokoro, who keeps clinging to Shizuru and calling him "mama."
Baby, Kokoro no Mama ni! is currently publishing . It is also Known as: Baby,ココロのママに!, Baby, Kokoro no Mama ni!
Genres: Family, Comedy, Slice of Life
Top 6 Manga Like Baby, Kokoro no Mama ni! [2022 List]
6. Flat

Heisuke is a young man who was left in charge of taking care of his little cousin Aki for a day. Being an only child who usually stays at home alone, Aki is quiet, reserved, and will go out of his way not to make trouble for others. As they spend more time together, Aki begins to grow very attached to Heisuke, especially since Heisuke's hobby is to make sweets and desserts. The quiet Aki eventually opens up to Heisuke, and Heisuke in return teaches Aki that sometimes it's all right to be selfish and say what you really want to do.
Flat is finished and has 8 Volumes and 40 Chapters. It is also Known as: flat, Fuyume, Winter Sprouts
5. Jinrui wo Metsubou sasete wa Ikemasen

On his way home from work, the 26 year old salaryman, Kawakita Osamu, encounters an alien named Lilin. She and her species plan on invading the earth but she ended up getting stranded on this planet. Can Osamu raise her to become a kind-hearted kid before her species eradicates humanity in five years?
Don't Destroy Humanity is finished and has 3 Volumes and 31 Chapters. It is also Known as: 人類を滅亡させてはいけません, Humanity Mustn't Get Eradicated, Jinrui o Metsubou Sasete wa Ikemasen, Человечество не должно быть уничтожено
4. Gakuen Babysitters

After their parents are killed in a plane crash, Ryuuichi and his younger brother Kotarou are taken in by the chairman, who they never met before, of an elite academy. Ryuuichi becomes the school daycare's new babysitter.
Gakuen Babysitters is currently publishing . It is also Known as: 学園ベビーシッターズ, School Babysitters
3. Usagi Drop

When 30-year-old Daikichi returns home for his grandfather's funeral he meets an unfamiliar child in the garden. His mother explains that Rin is his grandfather's illegitimate daughter by an unknown mother. The girl is an embarrassment to all his relatives and nobody wants to take her in because of the scandal. Annoyed by their attitude, Daikichi decides to take care of Rin himself, even though he is single and has no experience raising a child.
Bunny Drop is finished and has 10 Volumes and 62 Chapters. It is also Known as: うさぎドロップ, Usagi Drop: Bangaihen
2. Love So Life

Shiharu is a high school student who loves kids, lives in an orphanage, and works at a daycare... Until the handsome uncle of two-year-old twins offers her a raise if she'll be their babysitter. Often relying on memories of her mother's actions for guidance, Shiharu quickly finds herself falling in love with her new makeshift family.
Love So Life is finished and has 17 Volumes and 111 Chapters. It is also Known as: LOVE SO LIFE, Love So Life
1. Yankee Shota to Otaku Oneesan

An otaku girl is being stalked by a scary yankee kid. Her already small social life is at risk! What's this kid's deal?!
Yankee Boy and Otaku Girl is currently publishing . It is also Known as: ヤンキーショタとオタクおねえさん, Yankee Boy and Otaku Girl