Birthday: September 27

Horoscope: Libra

Blood Type: B

Age: 23

Souta is an employee of the Quality Assurance Department at Sunlight Beverage and is a singles player of the badminton club. He is the elder brother of Touya Saeki, who is Mikoto's classmate. Reflecting his calm personality, Souta has a calm play style as a badminton player, and although he is solid, he is often reluctant. He enjoys playing games.