Siren Jack idea
Has a dark blue tail that gets lighter on the tail fin, the tail has bright green wavy stripes on it and at where his tail meets his tail fin it it's green with a big dark blue spot resembling an eye, and the very bottom of the tail fin is bright green, arm fins are dark blue that goes lighter towards the end with the spines being a bright green, webbing between fingers is dark blue and bright green on the end, has a wavy dorsal fin that's bright green and dark blue on the on the end, the green is a florescent neon green and the green on the tail glows in the dark, the green in his hair glows too but unlike his tail it doesn't always glow when in the dark it's oddly finicky, his irises glow green when using his siren abilities, has a scar on his neck where a harpoon nicked him Was the siren for his pod, warding off and causing trouble to any passing humans that were deemed dangerous. one day he had a run in with a group of illegal whalers and they tried catching him. when they failed they attempted to kill him and shot a harpoon in the water, it didn't hit him, instead it grazed his throat, the sharp head of it cutting his neck. while it didn't kill him, it damaged his voice, leaving him unable to sing. having no need for a siren who can't sing, he was kicked out of his pod. While swimming a couple miles off the coast of California he gets caught in a bad storm and is knocked out, washing up onshore. when he wakes up he finds out that he is apparently one of the rare merfolk that can become human when on dry land. finding no point in living in an ocean that doesn't want him, he decides to live on land, pretending to be human. He gets a choker to cover his scar. unfortunately, since he doesn't have much knowledge about the human world, he is able to get a job and ends up homeless. that is, until a man named Mark comes across him and offers to let him stay with him (( not Septiplier, just friends )) . Jack often tries singing when no ones around in the hopes of his voice getting better. unfortunately, even if it does, it won't be the same due to the damage affecting his siren magic. though, it didn't dissapear. unable to affect his singing anymore, it adapted, allowing him to hypnotize with his eyes instead. it slightly affects his laughter too, so that whenever he laughs, people who hear it can't help but feel some of the joy he's feeling.
Completely separate from my Merman Jack. Probably not gonna write a story for him but I definitely want to RP with him.