Atsumu and Osamu

Atsumu is naturally carefree, confident, and perhaps a little selfish. His twin brother, Osamu, describes him as a liar and an egotist. Atsumu is a perfectionist who sets high standards for both himself and his hitters. He is the team captain and plays as a setter, wearing the number 7. He also wore the number 7 in high school, but when he played in the Divisional League, his number was 13. Atsumu is 189 cm tall, and Osamu is 184 cm tall (Atsumu and Osamu are both 23 years old).

If hitters don't live up to his expectations, Atsumu can openly express his dissatisfaction, even to his own brother. He's extremely sensitive to noise around him. When the court is too noisy, especially when he serves, he becomes alarmingly angry and irritable. His brother, Osamu, believes Atsumu's intelligence is comparable to that of a five-year-old.

Atsumu can't stand losing, and whenever it happens, he's ready to scream and get angry. The relationship between Atsumu and Osamu isn't always smooth, and they can argue and even fight during matches. However, despite this, deep down, Atsumu cares for his brother and even loves him a little. But that doesn't mean they won't fight and squabble. Compared to Osamu, Atsumu is more emotional and often smiles or laughs. Osamu, on the other hand, is less emotional and rarely smiles, but can often show anger and irritation.

As children, Atsumu and Osamu adored foreign names, so they came up with nicknames for each other. Atsumu adopted the nickname Tsumu, and Osamu became Samu. They still use these nicknames. Tsumu's favorite food is fatty tuna, and he gets irritated when his fingertips get dry. (Atsumu is also rich because he's on the MSBY team.)

Oikawa Tooru (Atsumu Bokuto and Kuroo's friend) is a setter. He used to be the captain of the Aobo Josai volleyball team, and when he grew up, he played for the Argentine national team (he received Argentine citizenship and played as the main setter). He's also rich. He has dark, chocolate-brown hair and slightly lighter brown eyes. All the girls fall in love with him because of his good looks. He's constantly hitting on pretty girls and is dependent on his good looks, which is why Iwa-chan (Iwaizumi), his childhood friend, scolds him for it. He's 185.5 cm tall. He's self-confident and strives to be perfect and live up to everyone's expectations. He smiles often and gives the "✌🏻" sign, but is often faking it. (Oikawa is 24 years old)

Bokuto Kataro is 191 cm tall. Cheerful, friendly, energetic, and has a childlike personality. These are all characteristics of Bokuto. He's prone to mood swings; any small thing can dramatically change his mood, which can impact his performance. His teammates often have to encourage him; when he's inspired, he's very strong. He used to be number 4 on the Fukurodani team, but now he's on the same team with Atsumu (and also rich) and is number 12. (Bokuto is 24 years old.)

Kuroo Tetsuro is a friend of Atsumu and Bokuto. He stands 187.7 cm tall, has amber eyes, and tousled black hair with bangs on the right side, partially covering his eye. He used to be the captain of the Nekomo team as a brilliant blocker and attacker, but now he works in the sports promotion department of the Japan Volleyball Association and is also wealthy. Kuroo is calm, confident, and at the same time somewhat sarcastic and intriguing. His best friend is Kenma Kozume. (Kuroo is 24 years old.)

Well, now they were sitting at Atsumu and Osamu's house, chatting, having fun, going crazy, etc.

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