[1][2] Ando took the entrance exam for Studio Ghibli while he was a student at the Nihon University College of Art and was accepted.
[1] At the young age of 25, Ando was chosen to be the chief animation director of Princess Mononoke.
[4] He worked as a character designer and animation director for Hiroyuki Okiura's A Letter to Momo in 2012.
In 2014, he worked on When Marnie Was There as an animation director for Studio Ghibli for the first time in 13 years since Spirited Away, and also co-wrote the script for the film.
[5] Ando made his directorial debut with Shika no Ō: Yuna to Yakusoku no Tabi, alongside co-director Masayuki Miyaji.