Episode Title:Afterglow of Regret.Episode Description:As Jiro arrives to Mitsuko's childhood home, a set of traps set by Gold Bat. As Jiro fends off his traps, Mitsuko learns that Dr. Komyoji joined Professor Gil as his sons last request, but realized he caused his death and his wife was a spy sent by Professor Gil. Jiro manages to get inside the house and finds Mitsuko only to be another trap. Mitsuko insist he turns into his robot form but refuses due to him being in shame of his appearance. Jiro escapes by using his guitar is left to fight Gold Bat but takes a blow to protect Mitsuko. Mitsuko suggest repairing him, but a mysterious man kills him and runs off before Jiro could learn his identity. Mitsuko convinces Jiro to stay with her before he could leave.