Eri Yasuda

Eri Yasuda is an orphan raised by Katsuyo along with Ami, becoming her older foster sister.

She is an attractive young woman and has long hair. She usually wears casual, feminine clothes.

Eri is a calm and friendly person who is usually kind to the people around her. Eri also has an aggressive personality that is shown when she is made angry, described to be a tough, no-nonsense delinquent in her youth who easily scares those who manage enrage or annoy her, such as how she angrily reprimands Ami for her foolish behavior with the threat of burying her in the ground. While she tries to be nice and unassuming at first, Eri becomes a "blood-hungry and wrathful demoness." If anyone pushes her too far, she does not stop. This is shown when she violently assaults Fuwa's grandson for picking a fight with Hayato and/or Takumi, and only stops when Ami manages to subdue her.

Eri was taken care of by Katsuyo since she was a teenager, so she was in charge of taking care of the younger ones, including Ami, who would become very close to her. During this time, Eri would learn martial arts and was the one who would instill an interest in martial arts in a young Ami.

As an adult, Eri would take care of her grandmother for a while. Then, she and Katsuyo would move to Miura after Eri got engaged to Takumi.

(Source: Goddess Café Terrace Wiki, edited)