In her third year in the workforce, Aya, who has just turned 20, has her first junior colleague! His name is Yamato. He is six years older than her at 26 years old. He has a refreshing and caring attitude, which made him popular with the department's other colleagues, but he likes to tease Aya a lot and bully her a little bit, even though she was supposed to be the one training him… When the smart and mature side of Yamato-san takes the lead, Aya gets all flustered. At this rate, she won't be able to work...! A secret office love affair with a slightly sadistic older junior…
Nijuu to Seijuu has finished publishing and it has 28 Chapters. It is also Known as: 二十と成獣, Twenty and the Beast
Genres: Shoujo , Romance , Drama , Office Lady , Working Life
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Top 5 Manga Like Nijuu to Seijuu [2026 List]
5. Himokuzu Hana-kun wa Shinitagari
Yoshino is a second-year working adult who is exhausted from her daily life and work. One of the worst days of her life, Yoshino gets drunk and wakes up the next morning to find a mysterious boy named Hana-kun sleeping next to her. Yoshino ends up living with Hana-kun for a limited time, and surprisingly begins to feel comfortable living with Hana-kun. Meanwhile, due to a certain incident, Hana-kun becomes obsessed with her for some reason... A love-filled scum boy meets a deeply affectionate company girl, and a love like a powerful drug begins!?
Himokuzu Hana-kun wa Shinitagari is currently publishing and has Chapters. It is also Known as: ヒモクズ花くんは死にたがり, Hana-kun can't live without me., Deadbeat Hana-kun Has a Death Wish
4. Kawaisugiru Danshi ga Ouchi de Matteimasu
Reo is a smart OL at work but an unkempt otaku at home. So she offered for her friend Haru to come live with her rent-free if he'll cook, clean, and keep Reo away from bad relationships. It'll be great to have a good friend like Haru greet her with a cute smile and a warm meal when she comes home every day!
Note: Includes 7 extra chapters.
The Cutest Boy is Waiting Me at Home has finished publishing and it has 38 Chapters. It is also Known as: かわいすぎる男子がお家で待っています, 超绝可爱男生等我回家
3. Koigakubo-kun ni Hajimete wo Ubawaremashita
A woman in her thirties who has avoided love all her love receives a lesson in love from a younger man.
- MU
Koigakubo-kun ni Hajimete wo Ubawaremashita is currently publishing and has Chapters. It is also Known as: 恋ヶ窪くんにはじめてを奪われました, Koigakubo-kun ni Hajimete wo Ubawaremashita
2. Nijuu to Seijuu
In her third year in the workforce, Aya, who has just turned 20, has her first junior colleague! His name is Yamato. He is six years older than her at 26 years old. He has a refreshing and caring attitude, which made him popular with the department's other colleagues, but he likes to tease Aya a lot and bully her a little bit, even though she was supposed to be the one training him… When the smart and mature side of Yamato-san takes the lead, Aya gets all flustered. At this rate, she won't be able to work...! A secret office love affair with a slightly sadistic older junior…
Nijuu to Seijuu has finished publishing and it has 28 Chapters. It is also Known as: 二十と成獣, Twenty and the Beast
1. Fundari, Kettari, Aishitari
Kaho is busy working hard every day and is exhausted both mentally and physically. Her only recourse is drinking with the handsome Akira, who indulges in drinking, smoking, fighting, and having fun with women. She truly thought they were able to become quite good friends without any romantic feelings between them - until that night...
Fundari, Kettari, Aishitari is currently publishing and has Chapters. It is also Known as: 踏んだり、蹴ったり、愛したり, Họa vô đơn chí, chuyện ái tình, 不踹不踩不成愛, 打是亲骂是爱、爱得不够用脚踹, 밟고, 차고, 사랑하고
