[Crossover] Rintaro's Migraine Is Acting Up Again

Mori Taro, a second-year student at Yokohama High School, discovered a special way to open doors one day. The first time he opened a door, Tokyo was overrun by aberrations, and the streets were full of bizarre humanoid creatures. The second time, a boy with flames on his head ran past, completely naked and roaring. The third time, a young swordsman was cutting down zombies, and the force of his sword unleashed waves the color of water. The fourth time, an older version of himself seemed to be tricking little girls into playing dress-up (?) The fifth time, the sixth time... His smile slowly froze.jpg Mori Taro: ...This isn't the other world I wanted. Theme: Become a hero in another world