Yukina Tanigawa considers himself an ordinary volleyball player. Fortunately, he became the starting player of a powerful volleyball team. With the help of his talented teammates, he managed to win the national championship. Unfortunately, due to an accident, his previous strength dropped again and again, which always attracted various criticisms. Taking the opportunity of a training camp, in order to heal the psychological trauma, Tanigawa left Tokyo Power Volleyball Team in his second year of high school.