Mie Delgado is a loving, worried mother of Yamato Delgado. She is in fact the second mother of Yamato due to the fact that he was first raised by cats. Mie adopted him as his guardian and would also watch over his development and his future B-Daman Cobalt Blade. Mie also owns a café in the town where her and Yamato live. With this she is shown to be an excellent cook.