Life in the countryside is quiet and mundane for bookish Yi-gyeong until an errant ball sends star athlete Su-yi crashing into her life. The connection between the two girls is instantaneous, and simmers until their mutual attraction bubbles up into love.

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

Here, the recent past (popular culture of the 80s and 90s, and the PC communication and internet culture of the late 90s to early 2000s) intertwines with the near future (metaverse and technocracy). In this world, security is only about the safety of the social system, not the safety of individuals.