Please Forgive Me

Percico. AU- It's been four long yrs since that day Percy last saw Nico. That day have haunt him in his sleepless nights. When Nico finally came back to his life, everything have change about him since they took him away. He wasn't that bouncing and smiling little ten yr old Percy use to know. Since then, can Nico forgive Percy? Humor/comfort/hurt/drama -AU