Tanaka

Tanaka is a friend of Kaoru and works as a doctor.

She is married, but she uses a different last name than her husband because they have separate surnames.

Calm and Gentle Nature

Tanaka has a calm and gentle personality.

She became this way after having a big fight with someone in high school, which made her want to avoid arguments.

Role as a Name Giver

Tanaka is very close to Kaoru and her family.

She is the one who gave Kaoru's daughter, Sayoko, her name.

Tanaka and her husband are important people in Sayoko's life.

Friendship and Hidden Feelings

Tanaka has known Yamada since they were kids.

She actually liked Yamada ever since elementary school.

Personal Life

Even though Tanaka is married, she keeps her own family name instead of taking her husband's name.

This shows she values her own identity and independence.