Imagine that even though Darcy had attended Cloud Tower and you attended Alfea, you two were best friends despite it.
"Hey, Y/n." Stormy says, appearing right in front of you. "Hey there, Darcy." You replied. "I dropped by to tell you that we're planning something to take over the magical dimension." She replied.
You only nodded. "I want you to be careful, as I don't want you getting hurt." Darcy says. "Okay Darc." You say. "But I can only expect you to the your loser friends the Winx, to try to beat us." She says.
"Well duh, but I can promise you that I'll do my best not to get hurt." You tell her and she nods. "Good. Gotta go, later Y/n." Darcy says. "Later Darcy." You say and hug her.
Darcy hugged you back for a little while, before standing back and disappearing from your vision and the library.