That with every chapter that goes by, the only topic of conversation with this manga is the tattoo lol.
They have a connection because of the mark, so he can sense Hens emotions. He cried because that's what Hen is doing or feeling like.
I can read the same story concept over and over, yet think "that was good" but when I have an attachment to the characters, its so much better. It's pure awesomeness, it leaves me with my jaw dropped to the floor and never satisfied, always wanting more. These MLs were perfectly created.
One of my favorite artistic styles...
except the pepperoni nipps