After being teased by her family and friends for gaining a little weight, Usagi becomes obsessed with getting thin.
She and her friends join a new gym that promises instant weight loss. However, the gym is a front for Jadeite , who is using "Shape Rays" to drain energy from the girls. Sailor Moon Episode 4
If you are watching the more recent reboot, Sailor Moon Crystal , Act 4 is titled . After being teased by her family and friends