You can exchange the "Teru Teru Bozu" you get from the Rainy Season Event for items with the NPC "Lalun" at the "Prize Exchange".
A certain number of "Teru Teru Bozus" are required for each prize, so exchange them and get various gorgeous prizes including "Pom Creamy Treat"!
Rainy Season Event Prize Exchange Available Period
From: 05/29/2025 after the maintenance
Until: 07/10/2025 before the maintenance
Notes
*The event period and rewards are subject to change.
*Limited-time events or promotions may be held again in the future on different conditions after they have ended.