Akira, a member of Kenji’s prep class, hasn’t come to school for three days, and his classmates are getting worried. Kenji tells them to focus on their studies and he shows them an app to help improve their test scores. After school, Akira’s classmates drop in at the ramen restaurant that he runs with his older sister, Rei, but Akira refuses to tell them what’s wrong. Later, Kenji and Naomi find out that Akira and Rei are being harassed by loan sharks…
