Kota Kine

Kota Kine (木根 光多) is the son of Reika Kine. He came across his mother after she was transformed into the malicious Flying Smash but was fortunately saved by Kamen Rider Build.

Portrayal
Kota Kine was portrayed by Rui Takahashi (高橋 琉晟), who previously portrayed Chihiro as a child in Kamen Rider Amazons Season 2.