A futuristic world where robots have become popular, Tae-pyeong is possessed by a robot body in an unfortunate accident. He meets Nana, whose life is threatened by her evil uncle, who killed her brother to take over the company. The story of a robot who sacrifices his entire body to protect a child in danger.

When an astronaut leaves Earth for Mars, the vast infinite space divides star-crossed lovers in this animated romance that crosses the cosmos.