The Tenkai (Japanese: テンカイ, Tenkai, Korean: 텐카이, Tenkai) are a species of shapeshifting robots, disguised as toy bricks, from the planet Quarton. This species is known for its ability to generate Tenkai Energy, the most valuable source in the universe. The Tenkai are also known as Quartonians.
- Main article: Quarton
- Main article: Beast World