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

Kazuma Satou spun a wild theory, looking utterly convinced: "You must have eaten too much and couldn't afford to pay, so you attacked the shaved ice uncle!" "That's right! It had to be her!" "The detective guy is amazing!" "The light of Fuyuki City has arrived!" Kazuma Satou closed his eyes, ready to receive the praise he imagined. Then, from behind him, Hachiman Hikigaya's voice rang out: "Wait." He crouched beside the shaved ice uncle and pressed the red "blood crystal" on his head. Why was it ice?