Foreshadowing

When the boys were hurting the tortoise, Urashima Taro was watching. This foreshadowed that he was going to help the tortoise. Urashima Taro paid the boys to give him the tortoise and they did.

One example of foreshadowing is from the myth "Urashima Taro and the Princess of the Sea." For example, when the boys were hurting the tortise, it foreshadowed that he was going to help the tortise.