While Boruto and the others are forced to participate in Ouga’s experiments, Sarada and her team investigate Boruto’s disappearance and discover the existence of a suspicious individual. 
Meanwhile, Boruto is shocked to discover the identity of someone who may be working for Ouga. Just then, a test subject is found dead—killed for reasons that have nothing to do with the experiment.

He said to choose any envelope you want.
.قال أن نختار أي ظرف نريد
Wir sollten uns einen
Umschlag aussuchen.
Hay que elegir un sobre.
Hay que elegir un sobre.
Ha detto di scegliere la busta che preferivamo.
Ele disse para escolher o
envelope que quisermos.
Сказал: конверт 
можно взять любой.