The mark begins forming

When you're born you have a mark on the back of your hand. The more detailed the mark the more pain your soulmate is in. It starts as a blob and the more pain your soulmate feels the more detailed it becomes. So naturally, most people have a blob-ish mark on the back of their hand. What lengths will Izuku go to make his soulmate happy.

I don't own My Hero Academia or any of the pictures!