"Kou is a main character in the Japanese manga ""Wedding Delusion."" The manga focuses on the love triangle between him, the protagonist Satoko, and his best friend Hiroshi. Kou is portrayed as a handsome and charming young man with an outgoing personality.

Kou's character is defined by his love for Satoko. He has harbored a crush on her ever since they were children, and he makes no secret of his feelings for her. He constantly flirts with Satoko and tries to win her over, even though she is already in a relationship with Hiroshi.

Despite his persistent pursuit of Satoko, Kou is a loyal and kind-hearted friend to Hiroshi. He cares deeply for his best friend and wants to see him happy, even if that means sacrificing his own feelings for Satoko. Kou often struggles with this internal conflict between his love for Satoko and his loyalty to Hiroshi, and this makes him a complex and engaging character.

Kou's personality is also reflected in his appearance. He is portrayed as stylish and fashionable, with an eye-catching wardrobe and trendy hairstyles. He exudes a sense of confidence and charisma that draws people to him, especially Satoko.

Throughout the manga, Kou's character undergoes several character developments. He learns to cope with his unrequited love for Satoko and comes to terms with the fact that their relationship may never be anything more than friendship. He also becomes more understanding of Hiroshi's feelings towards Satoko, and he becomes a better listener and friend to him.

Overall, Kou is a charming and captivating character with a compelling arc in ""Wedding Delusion."" His love for Satoko is both endearing and heartbreaking, and his loyalty to his friends makes him a character worth rooting for."