Ep. 1: Yuno completes missed homework and visits Hiro to express gratitude for a lunch rice ball.

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Yuno realizes she failed to submit her homework before Yoshinoya's class, forcing her to complete the assignment during the lunch break. Following the end of school, Yuno and Miyako spend time playing in the snow. Afterward, the pair travel to Hiro's apartment. Yuno intends to visit specifically to thank Hiro for the rice ball that Hiro provided her during lunch. The episode focuses on these daily interactions and the resolution of the academic oversight through immediate action and social courtesy between the characters.