Cast of the story

Sawada Tsunayoshi A.K.A Dame-Tsuna, is known to be the dullest person among all the students at Namimori-chuu. He has always been bullied by several students. No one cares about him except for his mother. But what if he's hiding something? But what could he be hiding?....He is hiding the fact that he is the complete opposite of what he's acting like. He is hiding his true self deep in the shadows. But what is he hiding from? More like, WHO is he hiding from? His deepest secrets are bound to be found out. Yet he himself was the one to spill it all out to the people he trusts because............
The Truth Lies In Him.