Mako is an alien character and the leader of the alien forces that attack Earth in the series. She is the older sister of Nurse Mio Sanada, though she appears physically younger because Sanada fell through a time warp that aged her many years. Mako communicates with the alien entity Riro through a pair of bobbly antennas on her head. Riro later uses these antennas to mentally control her, turning her into a puppet. She pilots the aliens’ pink UFO. Her role in the story is primarily that of an antagonist, but she is not inherently malicious; her actions are driven by Riro’s influence. When she falls under Riro’s mind control, she becomes a threat to the protagonists until Yuuki Kurama, with the help of Sanada, Pao, Ai, and Zero, manages to free her. After being rescued, Mako’s motivations shift away from hostility. Her key relationships include her sister Sanada, whom she cares for despite their reversed apparent ages, and Riro, with whom she has a direct psychic link. She also works alongside the other alien characters Pao and Ai. Mako’s notable ability is her telepathic communication via her antennas, which also makes her vulnerable to external control. She displays leadership qualities in organizing the alien attacks and skill in piloting her UFO. Throughout the series, her development moves from being an unwitting instrument of Riro’s will to a liberated character who is saved by the kindness of the Earth defenders. No further detailed personality traits or deeper motivations are documented in available sources.