Usagi Tsukino was eating pork buns and started to walk around the park and she sees her best friend Ami Mizino on the floor and Usagi shakes Ami.

“U-usagi run please..”

Usagi then runs away a bit far from the park and a dark light flashes and the sky gets darker and Ami turns into Dark Sailor Mercury and starts to look for Usagi.

“Where are you..”

Usagi then grabs her brooch and turned into Sailor Moon and jumps onto a roof.