Here's the answer!
Kirisaki does not have any restraint techniques implemented. He is implemented as a pure combat character.
The gate below Fiji is not yet implemented... It will be added in the next update, so please wait a little longer:/
I can't give you a definite time for the update, but all that's left is the production of the stages, scenarios, and bosses, so I think you'll have to wait a little longer.
Please wait a little longer.