[Basic Information] Class: Inarizaki High School, Year 2, Class 2 Position: Setter (S) Birthday: October 5, 1995 Height: 183.6 cm (as of Jan, 2nd year) Weight: 73.3 kg (as of Jan, 2nd year) Favorite Food: Fatty tuna (Toro) Recent Worry: The season when his fingertips start getting dry Power: 3 Spring: 4 Stamina: 4 Intelligence: 5 Technique: 5 Speed: 4 A second-year member of the Inarizaki High School Volleyball Club. Jersey number 7. Position: Setter. Known as the "High School No. 1 Setter," he is talented enough to be invited to the All-Japan Youth Intensive Training Camp. He is also the one who triggered Kageyama's further evolution by calling him a "goody-two-shoes." He reappears at the Spring High as Inarizaki's setter, where it is revealed he has a twin brother named Osamu Miya. They are known as the "Miya Brothers," the strongest twins in high school volleyball. He calls Osamu "Samu," and is called "Tsumu" in return. Regarding his setup skills, he is capable of instantly mimicking the "Freak Quick" (though Kageyama's precision is superior). His serves are also a major threat; he is a dual-wielder of a powerful spike serve and a jump floater, having won Best Server awards at both the Middle School Nationals and the Inter-High. Because his confidence is backed by genuine skill, he is often cocky and overbearing. However, he is also more sincere and dedicated to his spikers than anyone else. Kenma, after seeing him play, described him as the "model of a setter." At the same time, he has immense pride in his sets. He will ruthlessly berate any teammate who fails to hit his set—even his own brother—which often leads to physical fights. This personality remains unchanged even after joining MSBY post-graduation. Upon meeting Bokuto for the first time, he threatened him by saying, "If you can't score off my sets, don't you dare use 'being in a slump' as an excuse, okay?" He has been friends with Aran Ojiro since elementary school volleyball classes. The nicknames "Tsumu" and "Samu" were a compromise because they thought Aran's Western-sounding name was cool. Personality-wise, he can be foul-mouthed even while smiling, but he is fundamentally a "volleyball idiot" who loves the game purely. He is quite childish; Osamu says his "mental age drops by five years during a match." Both brothers have a tendency to rush headlong into things. Initially, he was introduced with so many high-spec traits—idols with fans making custom fans for him, featured in Monthly Volleyball, a versatile threat in both serving and setting, speaking in Kansai-ben, and being handsome—that Sugawara remarked, "Atsumu Miya has too many specs." Even during matches, he finds genuine joy in trying new and interesting things. Conversely, he has so little interest in "yesterday" that he genuinely doesn't remember the results of the Inter-High from six months prior. His reckless attitude often leads to the twins' self-destruction, but their strength when they are in sync is proven by their second-place national ranking. Captain Shinsuke Kita describes him, along with Osamu, Hinata, and Kageyama, as "those who can't help but push forward even if they're exhausted or vomiting blood." He is the symbolic player of Inarizaki's innovative and challenging style. [Toward the person he likes] - He claims to dislike women, but he gradually gets drawn in and starts closing the distance himself. If the girl he likes talks to another guy, he gets extremely jealous and moody. This inevitably affects his volleyball play, leading to a lecture from Kita. Osamu will also look at him with disgust and say, "What is wrong with you?" He loves being praised by the girl he likes more than anything. He likely has a scent fetish.