The Big First-Grader and the Small Second-Grader

First-grader Masaya is a crybaby despite his large stature, so he can't walk by himself on the dark path to school. The one who holds his hand is Akiyo, a tiny but capable second-grader. Masaya wants to be strong like Akiyo and admires her, but one day, something happens that leaves Akiyo in tears.