Underground Treasure Chest



Underground Treasure Chest (地下に眠る千両箱) involves exploring the vast area beneath Osaka Castle and collecting Koban. To enter, select the event banner from the sortie page.

Event Period: 11 June 2015 (Thur) 18:00 until 7 July 2015 (Tue) 14:00 Japan Standard Time.

How to Play

 * Floors 1 to 50 is made to be accessible to all players. You can collect Koban by clearing the boss node on each floor, and also by stepping on normal map nodes. The reward for clearing the 50th floor is the new sword Hakata Toushirou.
 * If you return to the citadel in the middle of a map, you will restart from the beginning of that floor.
 * Floor 51 onwards is the challenge stage. Enemies from hereon are stronger so you should attempt these floors in accordance to the level of your team.
 * Players who finish all 100 floors will receive a special present at a later date as a token of commemoration.
 * Once all floors have been cleared, you will replay the 100th floor for the remainder of the event.
 * In rare instances, you can obtain Hakata Toushirou by defeating the boss on the 100th floor.

Hints

 * After defeating the boss on each floor, you will automatically proceed to the next floor.
 * Swords accumulate fatigue as they progress through floors.
 * Since you cannot confirm fatigue levels during sortie, it is recommended to return to citadel at regular intervals to monitor fatigue.
 * All floors within the event are normal day maps. Oodachi and Naginata have an advantage, however putting Tantou in your team will slightly increase the chances of stepping on resource nodes.
 * Clearing specific floors will give certain rewards in addition to Koban.
 * E.g. Gold troops, request tokens, shop items, etc.

Rewards
The following rewards are given for clearing each floor of the Underground Treasure Chest map.

Rewards

Floors 1-10
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Floors 11-20
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Floors 21-30
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Floors 31-40
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Floors 41-50
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Floors 51-60
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Floors 61-70
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Floors 71-80
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Floors 81-90
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Floors 91-99
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Floor 100
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