Play Tennis in a Fantasy World

Hanyu Kazuyo is an unlucky guy who has the ability to travel through time and space at will without his own control. After traveling through n worlds, he finally found hope of rescuing him. System number 787878 came to him and told him that as long as he completed the task, he could settle in a certain world. Hanyu Kazuyo agreed. Then I start to go to class and play tennis every day, which makes people feel really happy! Except for the murder case encountered in Tokyo and the incident in which the monster would be involved, everything was ordinary and happy. A moment that blooms in simplicity! Spring cherry blossoms dancing in the breeze; The body struggling in the heat wave; Thoughts soaked in red leaves; The life that sings in the snow. In this extremely beautiful world, I will send you the most sincere hymn with my life! Mission: Everyone has the right to love and enjoy life