You were taking alchemy class with the sophomores when the room suddenly fills with smoke. You hear Jamil yelling a Kalim and when the smoke finally cleared, you found you, and all the others, had cat ears and tails. You'd turned into nekos.

Kalim: laughing

Jamil: lectures Kalim

Azul: What on earth!?

Floyd: laughs hysterically

Jade: Oh my. How cute.

Riddle: Kalim!? Also starts scolding Kalim

Ruggie: Guys!? Why is my tail so long!?

Silver: asleep Zzz...