Hyun-seon, who had been bitten by a large dog as a child, was afraid of Heedo because she remembered the trauma of that time when she saw him, but she happened to start studying with Heedo after school. Contrary to prejudice, which I thought would be scary in personality, ‘I'm saying it because I don't understand... everything, please tell me once again.’ Hyun-seon is surprised by Hee-do's shyness and shyness. Moreover, after seeing Hee-do, who couldn't even eat properly because of the harassment from her seniors in the judo club, Hyun-seon starts taking care of Hee-do, and Hee-do, who was always alone.