English: confinement roomChinese: 禁闭室Japanese: 反省室(はんせいしつ)
confinement room
禁闭室
反省室(はんせいしつ)
Example
"Yeesh, if Jean was listening to this... Klee might find herself grounded for an awful lot longer."
「はあ、ジンがこの話を聞いたら…きっと、クレーの反省室で過ごす時間が長くなるだろうな…」