Adept
The construction of an underground prison will be done by someone who is adept at it.
こう
うま, たく
None
Adept at constructing underground prisons, you've caught the eye of Emperor こういち, the royal underground prison enthusiast.
An update is needed before you can continue but you have more than one WaniKani tab open.
Finish up what ever you are doing on the other tab(s), then close them to continue.
The update will complete automatically once the other tab(s) are closed.