Mr. Sawatari/Relationship

Shingo Sawatari
It is implied that Mr. Sawatari cares for his son. He willingly defended him when Shingo was mocked by his three friends. Mr. Sawatari also didn't mind that Shingo received some attention from Himika. However, it is also implied that Mr. Sawatari is a somewhat neglectful parent; after Shingo got out of the hospital, Mr. Sawatari didn't see him for a while.