After arriving in Japan, a land shrouded in countless bizarre rules, Kirihara Shinji decides to save himself rather than die an ordinary death.
However, as a transmigrator, his golden finger is a reverse-affection System that only grants him abilities through "conquest."
Looking at Ai Haibara, Megumi Kato, and Kurisu Makise, all raising their machetes beside him...
Kirihara Shinji looks utterly aggrieved. "I'm doing this to save the world."
And besides... I'm the one being conquered!
P.S. 1: A crossover featuring Detective Conan, How to Raise a Boring Girlfriend, Steins;Gate, White Album 2, Oreimo, Kuroko's Basketball, Kaguya-sama: Love Is War, Natsume's Book of Friends, Crayon Shin-chan, Non Non Biyori, Laid-Back Camp, Harry Potter, and more.
P.S. 2: Harem, but some couples won't be broken up. For example, Shinran is impossible to separate.