After you complete all 152 shrines, Rauru tells you to return to the Temple of Time for your reward.

Quest Location

This quest begins when you have completed all 152 shrines.

How to Complete the Quest

Teleport to Ukouh Shrine and go east to the Temple of Time. Use Recall on the water wheels to go up to the Goddess Statue. Check behind the Goddess Statue to find a treasure chest. Open it to get the Ancient Hero's Aspect. This armor can't be worn with head or leg armor.