Naru Kotoishi

Naru Kotoishi is an energetic, cheerful child who constantly drops by Seishuu's house and has little sense of personal space. Sociable, adventurous, and fond of collecting unusual things such as bugs and shells, she also tends to imitate other people's words and behavior without always understanding them. She can annoy Seishuu, but apologizes when she realizes she has truly upset him.