The technician in the Central Workshop is the son-in-law of Russell’s family and the father of Tida. He used to be a guerrilla who was good at sticks. Later he retired from the military due to injuries and got married and had a daughter. When Cassius abandoned his sword and used a stick, he pointed him to the introduction of stickmanship. Although he is also a stupid parent, he is still a man of common sense compared to Erica.