'Go out and see the world, Gui. Maybe you will see the world without me, and you will wake up in your dream.' 

That's what Aaron said  to his young godsister

Six years later, while fighting in staring with Guigui that grown up into to a very beautiful  woman.

Now,he likes to punch himself for going away from her. She changed a lot when she went back to the mansion but she still hate him....

Aaron, who is very angry and jealous when she is flirting with her friend Lindee/Lindon