Sakura Sonoue

Sakura Sonoue is the younger sister of the story's protagonist, Masaki Sonoue. In contrast to Masaki's outgoing and impulsive nature, Sakura comes across as polite, considerate, and remarkably mature. She tends to show little emotional fluctuation in her day-to-day life, giving others the impression that she is difficult to read. Despite this reserved exterior, she is Masaki's most loyal supporter, quietly watching over and cheering on her sister's video-posting activities from behind the scenes. Within the story, she serves as the grounded, level-headed voice of reason.