Because I changed Haru's story, him and Yuji are pretty closer.

You see, They are from the same family. Haru isn't a yakuza/mafia, but his uncle is (Yuji's boss).
Yuji is Haru's bodyguard, this happen because of things I'm still working on it. But Yuji really cares a lot about Haru that he could give his life to protect the young dragon, something that Haru doesn't want it though.

I pretend to tell more about their relationship later, I hope you guys like the drawing.