Aikido Yuishinkai is the creation of Master Koretoshi Maruyama, a student of the founder of aikido from his last generation of students. A former chief instructor and president of the Ki Society he famously went into seclusion for 10yrs, receiving permission from the temple priest he emerged and with International Chief Instructor Michael Williams Sensei (retired 2012) brought Aikido Yuishinkai to the world. Today there are over 100 dojo following Maruyama Sensei.