Riko is a social girl who cares about her personal relationships. She is very close to her caretaker Misato Kuroi and enjoys spending time with her friends at school as well. When Kuroi was kidnapped, Riko's escorts offered to handle it themselves but she wanted to help. Riko quickly became flustered when it came to people she cared about and her ability to be with them, resulting in an outburst of tears when that's thrown into question.

Without a traditional family, Riko initially embraced her