The first volume of Anajiro, ``A virgin hero who has been fighting in a dungeon for 20 years, returns to the earth to find a world with a male to female ratio of 1:1000'', originally written by Chihiro Mishima, was released today, May 15th.

The World's New Reality
Ryuto, the savior of humanity who once defeated the Demon King, returns alive for the first time in 20 years from a dungeon that spreads underground in Tokyo. However, on the verge of his death, the Demon King spreads a virus that targets only men, and as a result, the world has transformed into a world with a male to female ratio of 1:1000.
A New Threat Emerges
Ryuto is enthusiastically welcomed by the women, and is excited about his unexpectedly popular period, but a new threat approaches the world that was supposed to be at peace... The work is being serialized in Futabasha's Gaugau Monster. With the first volume out now, fans can dive into this unique and captivating story, exploring themes of survival, relationships, and power dynamics in a world turned upside down.
The story raises questions about how society would function with such an extreme imbalance in the population, and how individuals like Ryuto would navigate this new reality. As the series progresses, it will be interesting to see how the characters adapt and grow in this challenging environment.