Blue Water Island Event Information


This article plans to help guide the user on what to buy first in the shop, and the general mechanics of the event.

Blue Water Island is a Story EventYou will receive 5 free stamina daily; this is the event stamina. You can spend event stamina to clear the story stages, at 1 stamina per entry. If you enter battle but fail or exit the stage, it will not consume event stamina and you may try again.

Stages and farming

There are two types of Story Event stages: one-time story stages, and repeatable farming stages.
One-time stages are accompanied by a story dialogue, and give a one-time reward when cleared. These stages cannot be replayed after the initial clear. The story dialogue can be replayed in the Record Repository.
Repeatable stages give a reward for each clear, and can be farmed repeatedly. Each repeatable stage will reward: credits (1H), battle data (1H), or core dust (1H), at 1~4 count per clear depending on difficulty. Since higher difficulty stages grant more rewards and event stamina does not refresh when overcapped, it is always optimal to only buy event stamina after Hard Mode unlocks to farm the higher difficulty stages.

Farm the material that you need. At synchro level 1~120, core dust; level 121~160, battle data and core dust; level 161~200+, core dust is recommended to farm. Although it may seem like you’ll run out of battle data a lot during these levels (161~200+). The user may feel tempted to farm battle data instead. I would still very much advise to farm core dust, as at levels beyond 200 cost 10000 Core Dust per level and after reaching level 200, battle data is essentially useless as the user will never run out of battle data even if they tried. See more here.

Clearing event stages also Event currency. Event currency can be spent in the event shop to purchase additional rewards. See the Shop section below for more information.

Shop Priority

I would recommend the buying order to be Recruit Vouchers > Skill books >Core dust > Battle data >Consoles > Credits (Core dust if above level 200+). Do NOT buy event tickets until hard mode, as it is much worth it to farm resources there. If the user has capped stamina (ex. 10/5 event stamina) the user will NOT gain the 5 free stamina daily attempts the next day/reset.

Reward Boost Nikke

When clearing an event stage, you may receive a bonus reward of 50 event currency. The chance for this bonus reward drop is at base 0% chance. In order to increase your chances for a bonus drop, you must bring Reward Boost Nikke’s in your story event squad.

Log-in Event

Challenge Mode

Challenge mode is a mode in the event which is easily accessible by clicking on the “Challenge tab” in the Event UI. Nikke levels are set per challenge stage however equipment, bond stats, console level and limit breaks are still accounted for. Additionally, more information about the Nihilister Boss fight can be found here.

1 challenge token is given daily, with the ability to store 3 at max. The Further you’re able to push through the challenge modes, the more rewards are received per stage completed.



When finishing event missions, the player is given 10 dice daily. Event tasks and missions can be seen in the top right of the event UI.

When rolling the dice, there are 6 possible outcomes that can be rolled which are 1-6. Please refer to image below to see which event boxes result in what outcome

Mini-Game Image Gallery


Two Paid skins have been brought in into the game! Pepper’s is found in the battle pass rewards. While Frima’s will be on Season 9 Mission pass(?).


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