At the age of 20, After Kaiya was married to Lin Angeles, Kaiya showed her the art of Kenpo. Lin learned Kenpo and Kaiya and Lin battled various bad guys who are trying to take over the Dojo of the Tsubaki Clan. With all of the villains gone, Lin became pregnant.

At the age of 30, Kaiya murdered the criminal drug lord and this act of bravery earned the attention of other crimelords.

At the age of 40, Kaiya tried to save Lin from death by childbirth but his wife told him, "Kaiya... You don't need to use kenpo to save me.... I'm at Heaven's doorstep.... Our child will be the blessing from the Gods that created us. Thank you for your kindness.... Kaiya....."

With her final parting words, Kaiya was mourning for the loss of Lin but found a baby girl. He cradled it in his arms and said, "I promise... I'll never let anything happen to you.... Saya."

To atone for the loss of Lin Angeles, Kaiya turned all criminal syndicates into a Luxurious Corporation for power hungry criminals and pirates as Zhou Leimeng said, "Kaiya, You are one richest and strongest of all the crime lords! How did you get all of that wealth?"

Kaiya told Leimeng, "Seeking Wealth, Fame and Power, I killed corrupt terrorist and blood thirsty murderers at the Holy Land of Israel, saving the political body within the very place Lin showed me. Without my love, I'm lost." Leimeng replied, "Well If you're seeking, I might have something that will make you comfortable!"

Leimeng snapped his fingers as the curtains pulled behind the most strongest warriors known as the Leiteng Clan. Kaiya was shocked and said, "Is that....?"

Leimeng said to Kaiya, "These are fiercest of all the warrior clans the world has to offer. The youngsters like Hong Leiting and her brother Jano and of course.... Their father, Gano Leiteng. Take your pick."

Heeding Leimeng's advice in choosing the strongest and the youngest, Kaiya chose Hong and Jano as assassins to keep his corporation back into business.

One night, Kaiya was visited by the group of aliens. The aliens gifted him the blue prints of the planet destroying battlestation. Kaiya and Leimeng is shocked that the blue prints has a lot of details of every room, control systems and arsenals at the space station's disposal.

After the aliens departed, Kaiya said to Hong Leimeng, "If we are to build this planet destroying fortress, We need all the resources from USA." The Tsubaki Corporation's subordinate are astounded by his words of wisdom.

Leimeng then said, "You have the brilliant words of a leader and a father!" Kaiya turned to Leimeng and said, "So you knew that I have a daughter."

Leimeng proudly added, "Indeed! All this time, Your daughter has been your treasured gift! What would happen if she took over the Corporation."

Having understood his desire for the much greater galactic empire, Kaiya said, "I know what I have to do!"

At the Tsubaki Clan's dojo, Kaiya confronts his father. "My Son!" Said Genya. "What happened to you?" Kaiya told him, "There's no need for explanations! I've lost everything because of my mistakes!" Kaiya battled Genya and injured him in the process.

Saya entered the dojo and saw her grandfather injured. She immediately ran at him in a state of pure anger and rage in the hopes of attacking him and avenging her grandfather's defeat, but Kaiya had easily dominated Saya by belly punching her. 

Kaiya said to Saya, "Girl.... I hope you could understand... I have other busy things to do." And with that, Saya carried her injured grandfather to the hospital.

Kaiya Tsubaki then entered Hong Yuli's house and offered Yuli's father a place by his side. When Yuli's father found out about the his identity, Kaiya's men, Jelly and Billy used their pistols and shot Yuli's father on the head.

"I knew you tried to alert the US government." Said Kaiya. "But I have expanded my business there before you could  report it."

Jelly and Billy entered Hong Yuli's house and shot Yuli's mother, leaving a trail of blood spilt on the 6 year old Hong Yuli's face.

At the underground construction site, underneath the Colosseum of Rome, Kaiya Tsubaki observed the construction of the Death Score.

"Zhou Leimeng. I need you observe the construction of the Death Score while I pay a visit to the Sangunji Clan's Dojo. " Said Kaiya.  Leimeng agreed as Kaiya's men prepared an airplane to travel to Japan.

At the Sangunji Clan's Dojo, Akira and Yugo's father is training his disciples and saw Kaiya Tsubaki face to face. Kaiya battled the Sangunji Karate Expert valiantly and honorably killed in a fatal but fair blow.

When the Sangunji Clan's Karate disciples tried to fight back, Billy confronted them and said,  "Oh! You wanted a Laser Bazooka, PALS!" Kaiya calmed him down and said, "Leave them be, I'm aware that Yugo has the secrets of the Sacred Fist."

The Karatekas of the Sangunji Clan are terrified by the menacing face of Kaiya as the Tsubaki Corporation's CEO and the Thomas Bros. left the dojo after Jano Leiteng kicked the corpse of Akira and Yu9go's father.

When returning home, Akira Sangunji arrived as he saw his father's lifeless body stained in the pool of blood. Akira wept in tears as he cradled his in his arms.