There are sweethearts and cool characters in the series, buuuut there also are some characters that you should NEVER mess with. This will be another mixed list, so let's go~

#5 Jairo Fernandes

It's not Jairo himself that will be trouble for you if you mess with him- it's the people that will come to back him up if that happens. At least four people will we pissed at the same time, evidently Makoto especially (and Makoto is a little sensitive concerning Jairo and tends go a little... overboard), Rei (who's considered to be a very strong trainer that can destroy you if she wanted to), Elma (she can be pretty serious and freak out if she wants to) and Lucian. If you muster up the courage to try harming Jairo, be prepared for a pretty freaking strong orcano-like headwind that will smash you against the next wall.

#4 Solace Wiveria

When Solace wants to see you fall, he'll make sure that happens. He mostly appears to be a rather calm dude, but when you give him a reason to freak out, he will absolutely demolish you (Evidence: Calì Final Showdown where he went aggressive, to put it in a harmless way). Solace is the leader of a team after all, so he will have Sky Force by his side and lead them to victory if you mess with him. Solace takes things very personal. Never pick up a fight with him.

#3 Taen Kataoka

Never dare to mess with Taen. He can have a Psycho Cut Blade in his hands reaaal quick. Taen has the face of an angel, the attitude of a devil and the heart of a fighter. If you challenge him, you'll end up regretting it because he will make sure you pay. Also, when he's going to destroy you, you won't see that in his face, because Taen's known to show only two face expressions. His "facade", or expressionless face which doesn't indicate what feeling he has and what is going through his head; and his smiling face which, under circumstances, should scare you, too. Because he can smile truly evilly. Also, he's pretty strong, so never mess with him.

#2 Jayden Yagami

Jayden might be a really nice person with a sweet smile and the face of an angel- but if he's pissed, he will stop being all Mr. Nice Guy. Especially when his protection instinct kicks in in case Mari is involved- if he's really stuck on the wrong nerve, he will cut you down or break your bones. Be careful if he's enraged, because he is really aggressive and violent then. If you don't know how to handle him- stay away from him.

#1 Akira Heavens

To be seriously honest... NEVER mess with Akira. Due to his ability, he could simply make your heart stop or squeeze your lungs... nonetheless, he can and WILL kill you if you leave him no choice. He can afflict you with pain if you annoy him- he can make you suffer in ways you don't wanna experience it. Akira isn't a person that will show mercy on you, since empathy or restraint aren't really his strength.

Who wouldn't you dare to mess with? Let me know in the comments~