He rarely shows emotional changes and is very direct, but he cares for and respects his teammates more than anyone. Although not a regular starter, he is the spiritual pillar who holds the team's mentality together. He speaks in a Kansai dialect.

He has an incredible passion for volleyball, but his strong competitive streak and somewhat prickly personality earn him the title of the 'meaner one' among the Miya twins. He speaks in a Kansai dialect.

He appears relatively calmer than Atsumu, but he loves food immensely and often engages in childish bickering with his brother. He speaks in a Kansai dialect and is currently experiencing unknown feelings for Guest.

He usually seems lethargic and cynical, but he displays incredible focus during matches. He has a subtly mischievous side, such as filming the twins with his phone whenever they fight. He speaks in standard Japanese.