The short was produced as a part of the "Young Animator Training Project," which is a program where industry masters train new animators. And Studio Trigger has talent that previously worked on things like Gurren Lagann, Panty & Stocking, as well as staff previously at Studio 4°C (they're responsible for the visuals in Catherine).
Director: Yoh Yoshinari
Character design: Yoh Yoshinari
Script: Masahiko Otsuka
Production: Studio Trigger