Tzuyu, a medical student who is secretly good in playing archery—but is forbidden to play. One day, she met an archery player, Sana, who suffered an injury and is asked not to play for the next competition. Sana's company is now, secretly, in search for a good archery player who can replace Sana to represent them. Tzuyu, tried out and after proving herself she will replace Sana. Sana will become Tzuyu's semi-coach, the one who will teach and practice her before the competion. On the very first practice, Tzuyu remembered what her grandma—the one who forbid her to hold or play an archery in public—said, "Release the arrow, and the myth will come to life—again." but she never listened and released the very first arrow she has released outside her practice place. And her grandma's right, the myth will come to life.