It's fine if you are short too.

Wataru and Souta met in their first year of high school and have been best friends since. Souta has a tendency to make fun of Wataru's small build and doesn't miss a chance to make a comment about it. There is only one thing that bothers Wataru, and that is Souta always treats him like a child. But will Souta ever find out the secret Wataru has been hiding?