Nozomi is the complete opposite of Tachibana Hikari. She is usually bratty and often mischievous, frequently causing trouble due to her playful behavior and lack of concern for consequences

Hikari typically maintains a polite and calm demeanor, being soft-spoken. She usually likes being with her sister, Tachibana Nozomi, who is her complete counterpart. Hikari doesn't really express herself, sometimes trying her best to follow Nozomi's behavior, mostly causing troubles.