Mafuyu Sato is a central character in the anime series 'Given'. Known for his quiet and reserved demeanor, Mafuyu initially struggles with expressing his emotions due to a traumatic past. His life takes a turn when he meets Ritsuka Uenoyama, who helps him discover his passion for music. Mafuyu becomes the lead vocalist of their band, using his hauntingly beautiful voice to convey deep emotions. As the series progresses, he gradually opens up and finds healing through music and his relationships with other band members.