Aikido Hashimoto Dojo

In martial arts, the goal is to control the opponent, but in Aikido, the ultimate goal and essence is not to fight. Ryuichi Hashimoto, who studied Aikido under the teaching of ``Aikido is Aikido,'' returns to Japan after completing his training in Sweden. Ryuichi ends up living at his teacher Kodaira's dojo, but the day after he returns to Japan, a dojo breaker appears at the dojo...!?