Remembering more details, was a scrappy girl with white hair in a high ponytail, cargo pants, a band name t-shirt that frequently got lost and replaced, and a striped two-piece swimsuit. And when helltaker's involved you know what white hair means

Got adopted after he came by my school to beat up some kind of secret society in the faculty trying to possess the building itself with a machine god, and got to kick some ass with him in future adventures full of intrigue and very questionable legality. Also ended up with Lucifer as a mom.

Dream seemed very focused on playing up the action hero vibes in the Helltaker's design, with a dash of Yakuza for the flair of his outfit where other gangs kept trying to take us out for messing up their shit, most of it before my time so I didn't know who to watch for until fists were already flying