Fireworks Event is an event that is available in version 1.2.16 of the iOS version. The NPC that is featured in this event is Maimi and she is wearing here clothing that she wore since the Sakura Matsuri event.
In the Fireworks Event, the player can claim two random colored chakra, one by a daily login and one by a daily Facebook post. Additional colored chakra can be purchased from the Shop within the event for 5 Tokens. There are five different colors of chakra: Green Chakra, Red Chakra, Purple Chakra, Blue Chakra, and Brown Chakra. These chakra are used to purchase Fireworks Event items and skills.