Izuru Tonogai

The main antagonist of Umareru.

Izuru is a 6th-grade transfer student and the cousin of Anna Yasuda. She appears cold, mature, vitriolic, and vengeful toward the main character Kazuya Mukai.

She is actually revealed to be Kazuya and Anna's daughter from a different timeline, as well as, a time looper just like Kazuya. Except in her case, she has actually been reborn/temporarily inhabiting the body of Anna's cousin. Her real name is unknown.