pain endured alone all night—true ninja training.#movie #hearttouching #adventure #funny

A boy is punished harshly by his master for making a sound while practicing ninjutsu. His senior sister secretly treats his wounds. The master demonstrates a healing technique, and the boy trains hard to become a skilled ninja. When he spares his senior brother in sparring, the master punishes him severely. He endures the pain alone all night and recovers by morning—earning the master’s approval.