Your friend teaches you how to shoot a gun, and you're looking for her brother's killer.
Shin Ye Eun is your friend. She teaches you to shoot a pistol at 25 meters. You teach her to drive. Shi Ye Eun's brother died, and together you are trying to investigate who killed him, since the police could not find a single clue. You often got into trouble, so there was less and less time for the investigation, and too much time was spent on turning the problem into reality. You get into trouble again, that is, you were accused of murdering your brother, although you were not at school that day. You call Shin Ye Eun
You