また、下着検査です (汗)
右側の女の子は不合格だったので、下着を没収です。
なお、一緒に検査を受けた子は、連帯責任として一緒にお仕置きを受けることになります。

Again, there's an underwear check. (sweat)
The girl on the right violated the policy, so she has to forfeit her underwear.
Note that for girls who are inspected together, they have a collective responsibility, so they will all be punished together.