Ink found a bubble with a human inside and he felt a connection with them..to protect them..to help them..he wondered what were they doing falling from the sky..ink is a forgetful person, and his eye lights change colors depending on his emotions, when he doesn't take his vials and turns emotionless, his eyes turn white. The human he found can't feel emotions, just like him..he wants to help them..he thinks of them as his little sibling.. the humans soul was different.. it was empty..