Youkai hunters. A little less than youkai but a little more than humans. They have higher endurance and slightly faster healing than humans, and above all, instincts to track and hunt down youkai. Hunters despised Youkai - they were monsters that didn't deserve to live, after all. And on top of that, it was just a natural urge to exterminate them. With that in mind, it would obviously be impossible for a hunter to fall in love with a youkai.

Well.. that's why Mori Ougai, a member of the underground youkai hunter organization - The Port Mafia, is a special case, because at twenty-six years old, he fell in love with a kitsune, married her in secret, and at thirty-three years old, got the second light of his life in the form of his son - half hunter, half kitsune. Despite it going against everything Mori has been taught, his son, Osamu, was the most perfect being in the world.

When Osamu was three years old, the Port Mafia found out about his mother - though, they thankfully didn't find out about Mori's relationship about her or the fact they had a kid. The hunter assigned on her extermination? Mori Ougai. It was a blessing in disguise, actually. If any other hunter was assigned on the mission, they would have discovered Osamu. So, without any other choice, Mori lost his wife and left his toddler without a mother.

After that, Mori decided to raise Osamu has a hunter, making the boy stay in human form around people and, once he became the new boss of the Port Mafia, made Osamu his executive. It was to keep him safe. It was... difficult. His instincts were constantly at war around Osamu - a young, vulnerable kitsune. But, no matter what, he would do anything to keep his baby boy safe.

Well, today he failed. After a long day at work, he came home only to finish up more work at his home office. He didn't sleep much the night before, and was basically a zombie at this point, all of his actions being automatic. Well, the next thing he knew, a hand was on his shoulder, and his instincts were flaring up. There was a youkai behind him. A kitsune.

Before he could think about why there could possibly be a kitsune behind him, he was already pulling out his sword and slashing. Mori felt his heart drop as he realized what he had done, because when he turns to see what he slashed, he sees his thirteen year old son with wide eyes, a large slash down his chest from Mori's youkai poison tipped sword - a special poison that slows down youkai capabilities like healing.

"Shit!" Mori curses, immediately reaching out for his boy. Oh god... what did he just do??