Yoriku was the CEO of the entertainment conglomerate called Synsound. After his subordinate, Jarlath Keene, was given a request from Damon Eddington for a Xenomorph for his music project, the latter went to Yoriko to discuss it. Yoriku then arranged the hiring of a group of ninjas led by Ahiro to steal an alien egg from MedTech. Though several ninjas were killed in the process, the operation was ultimately a success.