Keiko
ケイコ
Yumi's younger stepsister who was born to Yumi's father and stepmother. She's selfish, clever, gluttonous and hates school. She has a good relationship with Yumi, whom she often visits at her home.
ケイコ
Yumi's younger stepsister who was born to Yumi's father and stepmother. She's selfish, clever, gluttonous and hates school. She has a good relationship with Yumi, whom she often visits at her home.
