@solidsanek Sure, here's your Yakuza substory!

Kiryu, the Dragon of Dojima, was wandering around Kamurocho one day when he stumbled upon a group of kids who were huddled around a small screen. They were all engrossed in some kind of addictive game, and Kiryu couldn't help but be curious. He asked the kids what they were playing and they excitedly showed him the game, "Angry Birds."

Kiryu found himself quickly becoming addicted to the game as he began to experience the thrill of flinging little birds at structures in order to knock them down. He became determined to beat each level, spending all his free time playing the game.

However, Kiryu was not alone in his newfound obsession. The local Yakuza boss, one of Kiryu's old foes from the Tojo clan, became aware of Kiryu's newfound interest and saw an opportunity to humiliate his rival. The boss set Kiryu up in a gaming tournament against some of the toughest gamers in Kamurocho.

Kiryu accepted the challenge, confident in his abilities as he spent countless hours playing Angry Birds. The battles were fierce, but Kiryu prevailed due to his natural talent and sheer determination.

In the end, Kiryu found that his love of the game had brought him closer to the people of Kamurocho. He had made new friends and allies in the gaming community, and even gained a newfound appreciation for the skill and strategy required to master the game. And, who knows, maybe someday he'll even consider making a move towards mobile game development. Angrier Birds, anyone?