Red Blood Cell has been assigned to train a rookie Red Blood Cell. She resolves to "show her what a dependable senpai I am" but she keeps losing her way, and getting yelled at by other cells, so it's not going very smoothly. Just then, a major incident rocks the world inside the body.

Starring:

Karen Strassman , Mamiko Noto , Morgan Berry , Griffin Burns , Ray Carsillo , Ray Chase , Khoi Dao , Robbie Daymond , Darrel Delfin , Dorah Fine , Kellen Goff , Erika Harlacher , Xanthe Huynh , Billy Kametz , Erik Scott Kimerer , Christian La Monte , Cherami Leigh , Landon McDonald , Erica Mendez , Kayli Mills , Laura Post , Bill Rogers , Laura Megan Stahl , Armen Taylor , Chris Tergliafera , Kana Hanazawa , Tomoaki Maeno , Akinori Egoshi , Junichi Yanagita , Juri Kimura , Kikuko Inoue , Kensuke Satô , Kentarô Kumagai , Daisuke Ono , Maria Naganawa , Aya Endô

Genre:

Animation, Action, Comedy, Fantasy