A Hentai System in the World of Danmachi - Chapter 45 - 44 - Tiona Hiryute

Ukei Kaito fought a desperate struggle in order to fulfill his role as a summoned hero. He defeated the Demon Lord and saved the very world, only to meet an end filled but with betrayal. The companions that he’d trusted throughout his journey betrayed him and killed him by sticking a blade through his chest.

The notorious firearms crime lord Chen Zhang An a.k.a Old Fox was placed under house arrest by the very successor he groomed.

Warning! This novel is mindless and vulgar. If you don't like this kind of thing, please don't read it. My name is Silent, and I'm a senior high school student at an ordinary high school in Qingyuan City. One day, I unexpectedly awakened the [Tag System], which completely changed my life. I labeled my mother, younger sister, childhood sweetheart, and best friend from the next class, but why did they all turn into perverted girls...?

The story is about a man who’s opposed to the now-common practice of implanting false memories, but is one day given memories of a fictional childhood friend. This fabricated happiness torments him, but then, to his surprise, he meets her – a girl who shouldn’t exist.