sasagawa ryouhei

Age: 15, 25 (future self)
Gender: Male
Date of birth: August 26
Nationality: Japanese
Known relatives: Kyoko Sasagawa (sister)
School: Namimori Junior High
Grade: 2nd year, 3rd year (later in the series)
Vongola Ring: Ring of Sun
Box Weapon: Kangaryuu/Canguro del Sereno ver. Vongola
Sasagawa Ryohei is passionate about boxing and serves as one of the oldest Vongola Ring Guardians. He is the older brother of Kyoko Sasagawa, whom Tsuna has a crush on. In his past, while still in primary school, he was lured by some high school students and beaten up, resulting in a scar on his left temple.
Ryohei's life motto is "Extreme," which he applies to everything he does. Once shot with the Dying Will bullet by Reborn, it unleashed all his power because he is always in Dying Will mode.
It is noted that Ryohei was born with exceptionally strong muscles, giving him greater strength than an average person. However, he can only access the full extent of his power in situations where he is highly motivated, such as life-or-death scenarios or when fighting to protect Kyoko.