On a carpet of petals

Exploration Stage: Mansion by the Canal
From: Doorkeeper
Description: Every year the Japanese cherry blossoms attract millions of people around the world with their traditional hanami. I once brought a branch of cherry blossoms in full bloom to a lady. Back when I had not yet lost my powers. They are a symbol of the great spring. Can you help me find some cherry blossoms in full bloom?
Completed: This cherry branch is still newly bloomed. My power can no longer nurture it, though. But I can feel the power of spring from every petal! I hope this helps to open the door.