Mako (Voiced by: Kaori Mizuhashi): Nurse Sanada's older sister, even though Mako is physically younger due to Sanada having fallen into a time warp. She communicates with Riro through a pair of bobbly antennas on her head, which Riro later uses to mentally control her.
Mako (Voiced by: Kaori Mizuhashi): Nurse Sanada's older sister, despite Mako being physically younger due to Sanada falling into a time warp. She communicates with Riro through a pair of bobbly antennas on her head, which Riro later uses to mentally control her.