Name [IwaizumixReader/One-Shot/Soulmate]

If someone writes or draws on their skin then it shows on their soulmate's skin.

You are an artistic person, sometimes you even draw on your arms.
One day, during class, you got bored and decided to draw on your arms, but as you were pulling up your sleeves, you saw numbers on your hands and thought of writing to your soulmate for the first time.