Arisu Sakayanagi/Relationships

Arisu is one of the most intellectual students at Tokyo Metropolitan Advanced Nurturing High School and is highly respected for her status.

Kiyotaka Ayanokōji
No direct interaction hasn't been seen yet in the anime. In the LN, at the end of Volume 5, they encounter, as she states she knows something about Kiyotaka and the White Room, as well as his past. According to her, she seems to know him very well.