The Birth of Shuangyang in Haikyuu!!

After an accident, an ordinary boy is reborn as Asahi Hyuga, the elder twin of the Hyuga family. He was born on the same day as Shoyo Hyuga, his twin brother, and the two are inseparable. In his previous life, he died saving someone, leaving behind a heart full of regrets. Given another life, he has just one wish: to look after his naturally passionate, astonishingly springy twin, play volleyball by his side, and help him chase his dream in safety, with no regrets. Shoyo is fiery and reckless, always looking toward the sun, and pours all his love into volleyball. Asahi is steady and considerate, quietly holding things together and shielding his younger brother from every storm. The twins stand side by side, one fiery, the other steady. From peppering practice in their country courtyard to the fierce battles on the courts of Karasuno High. The boys rise with the wind, the two suns leaping into the sky together. This time, their youthful sweat will not be wasted, and their love for the game will carry them to the top.