This is the first currency you wil be introduced to in the tavern. It is available from level 1 and used until level 70. You can obtain this currency from playing Blue Soul Janken .
Recruits Ninjas
These are the ninjas that you can recruit with this currency
Upgrades Ninjas
You also require this soul when upgraded these ninjas
For more information on recruiting ninjas please look at Tavern and The Ninja Club.
For more information about other types of souls, please look at Souls