Kensuke Mochida

Kensuke Mochida is a minor antagonist and first antagonist of the manga series Reborn!

Why he sucks:

He is extremely unlikeable

He is a jerk who likes to make sure Tsuna is better off a loser.

He has no character development and zero personality

He threatens Tsuna, attacked him outside of school, to challenge him in a kendo match for harming Kyoko and this will make him proud of it.

He has a chauvinistic attitude towards women.

He is mean-spirited, who's behavior thinks he's better than anyone.

The only 2 Redeeming qualities:

He only appears in one episode

Thankfully Tsuna was able to defeat him in a kendo match, thus he will never harm him again.