Murian

Gale could be related to the Black Baron noble family

I'm basing this all on the fact that Gale has roses imagery on him.

The giant one on the back of his civilian form jacket, the pattern of his rocker jacket and the thorns along the ruffled collar, and his skill effect in Make It Loud made a flood of rose petals.

I'm not sure whether the pink or white is his real hair color, but his civilian hair feels like a drooping flower/flower bud to me, while his rocker hair is him "in full bloom".

It's a huge stretch with a generous topping of delulu, but humor me please-

So from what we know so far, we know that Julius is an adopted child of the Black Baron family. The current head took him in when he's still a child. Julius is dedicated to his family, so that probably means he's had a lot of "education" pumped into him, maybe even to an abusive degree to make him "earn his keep" in the family.

What got me curious was, why is the age gap between Julius and his "brother" so vast? From the look of it, the head is probably in his thirties, while Julius seems to be in his early to mid twenties. So Julius's adoption came off to me more as a "retry".

Retry of what you ask? Retry of Gale.

I think Gale is the younger brother of the Black Baron's head, legitimate or not.

As the younger child in a noble family, people wouldn't really care about him since he wouldn't be chosen as heir, even less if he's illegitimate. A child born out of an affair being taken in as an official member of the family is either seen as a gracious and kind act by the family, or desperation. His value in the family would be at rock bottom. He wouldn't have to study as hard unless he wanted to prove himself or threatened to, so he'd have more time to indulge in his hobby: Music.

Usually the instruments that would be "elegant" enough for nobles to play would be something like the violin or piano. A guitar is really toeing the line. A banjo is straight up an act of rebellion since it's a "peasant" instrument.

If we're going through the dramatic route, it could be something like:

Gale, the younger child of the noble Black Baron family, kept alive only for the necessity of having a backup heir, forced to grow up in the cold household and cruel noble society, pressured by the expectations from the family and their prestige. He finds solace in the small moments where he can connect with the people using music, so he made one for himself (or maybe a servant gave it to him. That'd be heartwarming and so tragic) and learned to play it.

So in an effort to try and straighten Gale out, the family could send him to join the navy (I'm leaning on the hand tattoo theory here). Then something happens that lands him in jail (maybe he helped a pirate get away or something ooohhh~), which he then escaped and now he's on the run from both his family (he would have known some secrets) and from the navy for deserting. This would give him cause to keep moving, then, of course, he found his bandmates and founded the Ranbo crew together.

Sidenote: I looked up some information on "Mayflower". It's apparently a ship's name? But also if we go with the literal name of the flower and the European theme, it would be the hawthorn flower, of which also has thorns, and the blooms can be in white, pink, or bright red. So instead of being a proper rose like his old family, Gale is his own unique flower that, when described, could be misunderstood for the other.