Penguin?

Penguin? (ぺんぎん？, also known as Pinguinosh), nicknamed Cucumber, resembles a green penguin, but is unsure if it really is one.

Appearance
Penguin? appears as a green penguin, but he does not know or have proof if he really is one. He has faint memories of being carried down in a stream, and having a plate on his head, although he can't remember anything else about his identity.

Personality
He likes eating cucumbers and has vague memories of having a plate on its head (this implies that he is a kappa). He also likes reading books. Since he uses sneaky ways to take the corner for itself, the black tapiocas often kick him up and away. He likes to read and listen to music. He is always the last Sumikko to arrive at the corner. So far, Penguin? still trying to find out who he really is. His biggest enemy is the claw’s machine bot hand that‘s eating his cucumbers, trying to pick it up all the time and grabbing him when he isn't focused. He had a flashback of his plate breaking.

Description
Am I even a penguin? Penguin has no confidence. In the past, there might have been a plate on Penguin’s head... There is only one thing I know about myself, my nickname is cucumber because I love cucumbers.