Oishi

Oishi is a character in Breathe Deeply. He knew Yuko and Sei from an early age and studied to better his life after his upbringing with his father.

Personality
He shows a caring side coming to visit both his father, and Yuko who are in hospital. Oishi smugly shares that he lives down the road from Yoko in front of Sei.

Scientific matters that he appeared to find complicated he tended to dismiss such as pointing out that his shirt is no human being when told that everything in the world is made of the same thing. Having elemental building blocks explained to him got him thinking that if he really tried he might be able to make and so was keen to study.

Tending to assume things and draw his own conclusions was also behind Oishi punching Sei in anger, resorting to violence when he felt Sei was responsible for what happened to Yuko.

Appearance
He has curly darkish hair and relatively thick eyebrows. Oishi is seen wearing a vertically striped, collared shirt that he wore unbuttoned over a white shirt.

Later he would wear lab related clothing.

Story
Oishi enters the hospital room where Yuko is being kept. Introduced to Sei who is also present, he shares that his old man is getting out of the hospital today. He came to check in on Yuko as well since he lives just down the road from her, a fact he emphasises by smugly glancing towards Sei.

He confronts Sei alone on why he is still here and questions why would he not become a doctor and save Yuko. His and Sei’s arms are taken by Yuko herself, with her tests now over and she leads them outside.

Sharing that he works three days a week at a place in Chinatown, Oishi says he is pretty good in the kitchen. He shares with Sei that he thinking about attending night school, he does not know if he wants to study, only that he wants to get out of this life.

The summer is enjoyed with Yuko and Sei whilst Oishi also works at the restaurant.

At Yuko's funeral he spots Sei and makes his way to punch him. Incensed, Oishi feels Sei killed her by telling her father that she wanted to pass away if her condition deteriorated. Oishi wanted to be able to see her.