investigation (e.g. academically, of the unknown)

Exploration Stage: Path of Petals
From: Mirai Furukawa
Description: In order to keep the spirits in a good mood, music is needed for the festival. I was learning the zither, a traditional stringed instrument for stage plays. Could you please bring your zither?
Completed: You brought my zither. Isn't it a soft and enchanting sound? The koto is the best way to create a cozy atmosphere when enjoying cherry blossoms.