If you don't attack me, the world will be destroyed

Coming to Japan, which is shrouded in countless weird rules, Shinji Kirihara, who doesn't want to die in an ordinary way, decides to start saving himself.
It's just that, as a time traveler, Goldfinger is a reverse favorability system that can only be acquired by "raiders".
Looking at Megumi Kato, Ai Haihara, and Kurisu Makise who were holding a hatchet beside him...
Shinji Kirihara is full of grievances, I am here to save the world.
And... I'm the one being attacked!
ps1: Zongman, World Famous Detective Conan who will appear, How to Raise a Passerby Heroine, Steins;Gate, White Album 2, My Sister Can’t Be This Cute, Kuroko’s Basketball, Miss Kaguya, Natsume Friends Tent, Crayon Shin-Chan, Leisurely Daily King, Swaying Camp, Harry Potter, etc.
ps2: The harem, but some cps can't be dismantled, such as Xinlan who can't be dismantled.