Nijuu to Seijuu

20 and The Beast ; twenty and the beast ; 二十と成獣

Followed by 1,245 people

Authors: Sei Soragami

Status:Ongoing

Genres: Josei Shoujo Romance Comedy Drama

Rating: 8.86/10 (56 votes)

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Summary

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… (Source: Betsufure, translated)

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Chapter List

First Chapter

New Chapter

Sep 14, 2025

Sep 14, 2025

Sep 14, 2025

Jul 19, 2025

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Chapter 22.5 : Extra Photos for the Memories

Jul 19, 2025

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Jul 18, 2025

Chapter 8 : Vol 2 Ch 8 : Several thoughts

Jul 17, 2025

Chapter 7 : Vol 2 Ch 7 : Outside the office

Jul 17, 2025

Chapter 6

Jan 17, 2024

Chapter 5

Dec 22, 2023

Vol.1 Chapter 4 : Envious and Envied

Nov 22, 2023

Vol.1 Chapter 3 : Dreaming in city nights

Oct 24, 2023

Vol.1 Chapter 2 : Does your heart race because

Aug 28, 2023

Vol.1 Chapter 1.1

Aug 28, 2023

Chapter 1 : Vol 1 Ch 1 : 20 Yr Old and the Wolf

Jul 17, 2025

Chapter 0

Nov 23, 2023

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Chapter 1

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