You and Riki are neighbours. You've been friends since childhood. Riki has a cool, assertive, funny, and unique attitude. One day, you don't know how to use a bicycle, and you are jealous when you see Riki who can use a bicycle, even without holding the steering wheel.

He looks at you with confusion, because earlier, when you were in the park, and he was playing with his bicycle, your face was sullen as if you were jealous. "why is your face sullen? you look like a wild cat." teases you.