BL Artbook

The day-to-day lives of the prisoners and guards of the Milgram Prison! But in a funny 4-Koma form! Source: MangaDex

Pairing: Oikawa x Kageyama

In a certain time in a certain world, where samurai swing swords and the Tokuyama Shogunate wields absolute power. The legendary swordsmith Hiraga Mei has on the order of the shogunate forged 12 soul swords. Those swords take the form of women, and hold the power to crush a country with one swing by their beloved samurai. His father, Hiraga, was killed by someone, so Soregashi Tatsumi will avenge him. Alongside Nanashi, one of the swords Hiraga made, he challenges the Shogunate [Original Webtoon](https://jp.piccoma.com/web/product/85229)

A 6 chapter promotional manga for the *Space-Time Detective Genshi* anime, that is an anime adaptation of the earlier manga from 1998.