Koei Tecmo Games is a Japanese video game developer and publisher formed in 2009 through the merger of Koei and Tecmo. The company is best known for its Dynasty Warriors, Nioh, Dead or Alive, and Atelier franchises, and frequently collaborates on licensed titles like Hyrule Warriors and Attack on Titan. Blending action, strategy, and RPG genres, Koei Tecmo has built a strong reputation for historical and fantasy-themed games with a global fanbase.

Toridamono is a Japanese illustrator renowned for character design in video games and other media. Notably, Toridamono served as the character designer and illustrator for Atelier Ryza: Ever Darkness & the Secret Hideout, bringing to life the protagonist Reisalin "Ryza" Stout and her companions. Beyond the Atelier series, Toridamono has contributed to projects such as Fate/Grand Order, illustrating the character Huyan Zhuo, and designed the 2023 Racing Miku for the Hatsune Miku GT Project. Toridamono's art is recognized for its vibrant color palettes and detailed character expressions, contributing to the visual appeal of various franchises.