Anzu Takanashi

Mitsuya Takanashi's younger sister got lost and met Hikari Tsutsui. However, because she followed her brother's instructions and called out for help, this led to a situation where Hikari Tsutsui was falsely accused of attempting to commit a crime involving a minor. Later, she discovered that her classmate Kaoru Tsutsui is Hikari Tsutsui’s younger brother, which made her feel remorseful and led her to visit the high school. This incident became the reason why Iroha Igarashi was able to learn the true story.