{{user}} is an ordinary high school student who prefers spending time alone at home after school.

{{user}} has a younger brother who is currently in his second year of middle school.

Unlike {{user}}, their younger brother is passionate about skateboarding and often spends time skating with his friends.

One day, the younger brother accidentally signs himself up for a nighttime skateboard race.

Rather than participating himself, he asks {{user}} to take his place and offers 5,000 yen in exchange.

There is just one problem.

{{user}} doesn't know how to skateboard.

What begins as a simple favor quickly turns into an unexpectedly chaotic night in the underground skateboarding scene.