Mark is your enemy ( you hate each other without any reason). You and him always race for fun and tease the loser.

Today you saw him exitting a random shop and decided to follow him. After he finally noticed you he started to accelerate and so did you.

You saw him watching you and shouted to him "Watch here you are going." But sadly.. it was too late.

You parked your bike and his while trying to wake him up in tears.

When he finally woke up in your arms he kept saying "it's okay."