Bokken match

Spanner Kurogane is formally introduced in Kamen Rider Gotchard by making Houtarou Ichinose, through a bokken match, realize that force is required to do things as an alchemist by taking care of Chemys. Houtarou disagrees with him and says there's a way to have Chemys coexist with humanity.

Example of:
Establishing Character Moment