Tsubaki Andō joined Musashino Animation as a production assistant in episode 13, her career choice fueled by a passion for dojinshi on which she spent substantial personal resources. An otaku, she possessed extensive knowledge of anime merchandise and novelties. She demonstrated high enthusiasm and confidence in her physical stamina, though this eagerness sometimes led her to overlook critical tasks or priorities. At Musashino Animation, she worked on productions including *The Third Girls Aerial Squad* under senior staff like Aoi Miyamori. Following the cancellation of *Time Hippopotamus*, a project causing significant financial strain on the studio, Tsubaki left Musashino Animation and moved to another animation company. Her surname "Andō" combines the characters for "peace, quiet" (安) and "wisteria" (藤), while her given name "Tsubaki" (椿) means "camellia flower".