Jirōmaru is a proud and ambitious beast who struggles with feelings of inadequacy. His desire to prove himself often leads him down a challenging path.
Kumatetsu is a beast warrior known for his strength and rough demeanor. He becomes a mentor to Ren, guiding him through a mix of tough love and unwavering support.
Ren, also known as Kyūta, is a boy who finds himself in the Beast Kingdom after running away. His journey is one of self-discovery, strength, and learning to open up to those around him.