Don't Play Galgames in Real Life!

Kasugabe Makoto, a veteran Galgame reviewer, received a "full-dive" game device of unknown origin. On his first day in the game, he encountered a dying idol magical girl and punched a hideous monster, "purifying" it into a silver-haired beauty who obeyed his every command. Wait, he knew this plot! This was clearly the standard galgame opening! So he decided to collect beautiful female Servants, establish the "Twilight Brigade," and clear the game perfectly! That is, until he discovered that all the NPCs in this "game" were real, and the official organization M.C.C.A. had listed him as a "Level One Threat"... Facing an ace magical girl bent on eliminating him and the "Demon" forces lurking in the shadows, Makoto scratched his head and raised his fist. "Since you can't save in this game, I can only choose the happy ending where I conquer everyone."