Boruto: Naruto Next Generations Temporada 1 Episódio 141

Hozuki Castle is a prison run by the Hidden Grass, well known for being notoriously difficult to escape from. Boruto and Mitsuki are sent there to protect Kokuri, a former member of a brutal band of robbers known as the Mujina Gang whos now targeted by assassins after betraying and deserting the gang.