Genki is Saotome's "son", rendered nearly completely mute and diagnosed as autistic after immense trauma, seeing both his older sister's corpse, and his father murdered in the span of a year. he will only have one or two lines in the third episode.

*spoilers if you want to watch the show before auditioning*

Kei is Genki thirteen years later, now believing herself to be an entirely different person. she is the primary protagonist starting at episode 4. she is courageous and righteous, doing whatever it takes to save lives. she is one of the strongest characters, able to take on several steroid fueled thugs at once with her bare hands, and smarter than most of the cast aside from a few characters. however, she is blinded by trying to do what is right. she would do whatever it takes to save lives, putting her own at risk. she would even attempt to save lives that have already been lost.