(You have water powers so Dream calls you fishy even though your atlas is Tormenta de marea. Translation: Storm tide)

you are meant to be Dreams side kick, Dream pushes you, takes all the credit, and pressures you to be better, one day you don't show up for training, then he sees on the news that the villain Siren has a new partner in crime, he looks closely and sees you he quickly takes off to smack some sense into you

once he gets where you and Siren he calls out to you

"Come on fishy! This isn't you!"

he says, looking at you causing destruction with Siren