Serenade is a pretty powerful being and has taken many down in the past. His speed is unbelieveable and his hand to hand skills are to be feared. Of course Megaman’s also fought against his share of intense enemies and can take Serenade down. Megaman has the power of Hubstyle and Bass Soul at his disposal! His speed definitely outranks Serenade’s and his power is to be feared. Megaman wins.
DReager1.com 
Can anyone link me the full comic
I think you can find it on Mangahere
Yeah I can’t find it
Can you tell me how fast is serenade
Serenade is massively FTL. One of the fastest characters in all of media
So that means that he can beat duo who is multi universal
But if anything I would put him at the same level
Definitely, I think Serenade would stomp Duo. Duo is strong, but he’s a little slow and just wouldn’t be able to land a hit which would render his power moot