Multiverse: Starting by Creating Delta of Fate, the Group Chat Goes Wild

A hard slam, and it didn't hurt. A vicious knock, and still... it didn't hurt at all. "Could it be... I'm invincible?" Mahiro Oyama grinned and quickly chased after them. The others had deliberately been waiting for her, so she caught up with them before they had gone far. Mahiro Oyama stepped forward and kicked Kazuma Satou in the butt. "?" Kazuma Satou turned around, rubbing his backside as a question mark appeared over his head. "What are you doing?" "I'm invincible now!