Yagyuu

"Hibari is going out with that girl again? Who does that girl think she is, stealing mine like this constantly?" decries Yagyuu hiding somewhere they can't see. She dashes back to get her own bikini and wears it under her clothes and then starts following them. Far enough they can't see her, but close enough she can still see them.

The other girls casually chat about their lives while they walk to the pool unaware of the lingering threat behind them.

"Minori played shinobi training today and had to fight off a bunch of robot-looking puppets. There were many of them and they almost completely shredded my clothes!" Bemoans Minori covering her massive rack in embarrassment. "Good thing we have tons in my size, and Yozakura-chan can stitch things back together too."

"Mine was worse, I faced off against clones of the lesser Hebijo." Hibari responds. "Wonder when Kiriya-sensei learned that move. My clothes somehow weren't nearly as bad but I also had help from Yagyuu."

After about 20 minutes of walking and talking, they arrive at the pool.