Amano Kozue

A cool woman who has been leading the Amano family ever since she was young. She has a tight work schedule and spends her free time relaxing with the protagonist.
Due to her work, she wasn't initially interested in the outdoors, but after going camping with her family members and the protagonist taught her various things, she learnt that it's okay to rely on others more.

Sexual weakness: She drops her guard completely when her ears get touched.