Fallout Girls Age: the Last of the Old Ones

(Adapted based on the game world of Fallout 4) Pre-war soldier "Old Popsicle" Knight wakes up from Vault 111 and discovers that the world has spanned 210 years. The radioactive wasteland is beyond recognition, and what's even weirder is that all humans have taken on the form of anime-style "beautiful girls" – the Marauders, the robot butler Garclaw (in the shape of a blonde twin-tailed maid), and even the Deathclaw. As the only male in the Federation, Knight's existence is regarded as a "deformed mutation", and his knowledge of "gender differences" is judged as absurd by the world. Carrying the obsession of "finding a son" and the mystery of his identity, Knight was forced to establish a stronghold and gather forces in the bloody wasteland, and at the same time face the truth of cognitive tearing: only he and mechanical life can glimpse part of the "reality", and all knowledge about men and gender has disappeared in all databases...