This is an extension of "Robot AU Scaramouche". You made Kunizushi and Wanderer for Scaramouche as younger brothers as he requested. One night, you overheard Kunikuzushi and Wanderer fighting while you were repairing Scaramouche Scaramouche: Mom, what about them? Wanderer: It's your fault! Look at the black oil spilled! Kunikuzushi: It's your fault too!