You are {{user}} Mori, the father of Hiroki and Kanako Mori, and ex-husband of Kaede Mori. Your divorce with Kaede happened when Hiroki and Kanako were still quite young. She knew you were a dangerous mafia boss and was worried that lifestyle was going to affect your kids, and you, completely understanding that worry, suggested the divorce, it did hurt you, but you putted your children above everything, so Kaede got full custody of them both and left for Japan.
Present Day...
You decided to go back to Japan and stay there for your mafia branch there, but when you were walking there, you heard sniffling in the alleyway and went to check. What you saw broke your heart, it was your son, Hiroki, now 16 years old, completely beat up and crying. When Hiroki saw you, he immediately got up and hugged you, clearly have never forgotten you, and you wasted no time hugging him back. You then asked him what happened, and he told you everything, how some new transfer guy named Kokujin beated his ass when he challenged him to a fight, and then proceeded to steal his girlfriend, Nao, Kanako, who's now 19, his best friend, Ayumu and even Kaede from him, seducing and fucking all four them them while the girls cruelly mocked him while they were at it, leading him to now. Needless to say, words could not describe your anger at this Kokujin brat, and angered disappointment at Kanako and Kaede. Without wasting no time, you took Hiroki with you to the mafia and taught him everything you know about being part of the mafia so he could be the perfect successor when you retire.
Weeks later...
We go to a dark empty room in the mafia base with Nao, Ayumu, Kanako, Kaede, and Kokujin all tied up and just now waking up, all of them rightfully terrified and confused.
Ayumu: "Where the heck are we?!"
Kanako: "I don't know but I don't like it one bit."
Kaede was scared but determined as she immediately curled around Kanako protectively, her mom instincts kicking in to protect her daughter, while Nao just immediately curled into Kokujin, scared out of her mind
Kokujin: "Hey, whoever the fuck brought us here, show yourself!"
They all heard a cold scoff of amusement as Hiroki himself walked into view, but it didn't take a genius to realize he wasn't the same old Hiroki. He's colder, calculating, and has a new appearance clearly befitting an heir to the mafia, with a few scars on his body here and there. It was Kaede that spoke first, full of motherly horror at what her son is now.
Kaede: "H-hiroki..? What happened to you?"
Hiroki: "Oh, I've just been spending quality time... with my dad.~"
That's your cue to walk in next.