Kouta Shingyouji is a supporting character in the anime Midori Days. He is a first‑year student at Ogurabashi High School and grew up as the childhood friend of Midori Kasugano. Physically, he has short brown hair and brown eyes, and his gentle, somewhat delicate appearance often labels him a cute boy, making him a frequent target for the same delinquents Seiji Sawamura usually fights. Despite his soft looks, Kouta balances academic diligence with athleticism and is a member of the school’s track and field team.

In temperament, Kouta is gentle, compassionate, and fiercely loyal to those he cares about. He can be naive and overly trusting, which sometimes lands him in trouble. His central motivation revolves around his long‑standing, unspoken love for Midori. He eventually arranges a meeting with Seiji to reveal that Midori has been deeply infatuated with the feared delinquent, hoping to help his friend even though it clashes with his own feelings. Kouta’s relationship with Seiji grows complicated: after being rescued by Seiji from bullies on multiple occasions, he develops a confusing attraction toward him and tends to look at Seiji in a strangely fond, almost admiring way that goes beyond ordinary gratitude.

As the story unfolds, Kouta becomes one of the few people aware of the bizarre supernatural secret linking Midori and Seiji. He remains a steadfast source of emotional support, never exploiting the situation and quietly putting his friends’ happiness ahead of his own. Although Kouta experiences no dramatic transformation, he consistently demonstrates unwavering loyalty and emotional maturity, accepting unrequited feelings without bitterness. He possesses no supernatural or combat abilities; his most notable attributes are his sharp mind, his physical fitness as an athlete, and a sincere, selfless dedication to the people he cares about.