Kensou was an orphan since a young boy, and had nowhere to turn to. He vagued through China like a homeless child. When he reached a camp village, he heard that the legendary Chin Gentsai lived there. Kensou hurried to his house, where he found him lying on the floor, dead drunk. Kensou pledged to be his student, and suprisingly he was accepted without too much effort. Kensou thus began his training under Chin's orders, who was drunk the most time, but managed to show Kensou the basics of kung fu. This was when Kensou began displaying his psychic power, being able to launch energy blasts. Chin, seeing this much power, decided to take Kensou on a training trip through the Asian area. Kensou enjoyed being with Chin, since he was like his father...er, grandfather, but they mostly got in trouble due to Chin's drunk rampages. Meanwhile, Kensou lived his life like any normal kid: reading "manga" (Japanese comics), and eating rice buns all the time. The training journey reached up to Japan.

While in Japan, Kensou and Chin met against a big bully, who challenged them to a fight. Kensou was to fight first, to show the fruits of his training, but the strongman was so silly looking, Kensou could not help but laugh. Then Chin had to butt in, but he too did not fight with seriousness. Suddenly, the big man was sent flying by a psychic blast. Kensou noticed a very beautiful young woman who had launched it. Kensou inmediately fell in love with the girl, and when she offered to join them and fight for justice, Kensou did not hesitate and accept. Of course, Chin had no other choice but to stay as well. Since then, Kensou has followed Athena and fought the bad guys along her side. Kensou has tried to get closer to Athena, but she keeps kicking him away. Kensou knows Athena likes Kyo, but despite his desperation, he knows Athena will fall for him someday!

Kensou of course did not doubt into following Athena when she received an invitation for the new King of Fighters tournament, introducing the team battle mode. Kensou fights bravely, always trying to show Athena how powerful he is! Even though sometimes he falls short of expectations, he always creates a good impression every year. At the end of each tournament, Kensou tries to show off to Athena, but ends up doing something humilliating. He was also pretty shamed that Athena always got the fan letters of people who admired their brave actions and justice fights. He got some, once in awhile. But Chin, seeing that the youngsters were getting too confident in their abilities, he decided to restrain them from entering the tournament of 1997, but a fan letter from a certain Kaori cheered Athena and Kensou up, almost obligating Chin to accept their entrance. Now, this is Kensou's chance to finally show Athena what he is really made of!

All seemed perfectly normal after the fall of Orochi, but in the subsequent months, Kensou's psychic powers began to vanish. With no logical reason to such success, Kensou began to grow desperate, angry at the idea that he would no longer be of help to Athena in her quest for justice. Around that time, a little kid named Bao was taken in by master Chin, and the child soon displayed enormous amounts of psychic powers! This made Kensou's sorrow grow even stronger, but Chin helped him out in perfecting other techniques that no longer needed psychic powers. Even so, Kensou could not stop feeling powerless, and unable to help his team in the new King of Fighters tournament.

Anyways, Kensou decided to follow Athena in her quest to stop Krizalid's ambition, being Krizalid the evil host of the tournament. After all, Kensou still loved Athena deep within, and would go anywhere for her. But as soon as they approached the base, the whole place began to tremble and fall down to pieces. Kensou runs right behind Athena in their hasteful escape. Athena, however, gets trapped by a rock, and is about to get squashed by another one. Kensou can't resist the image of her dead beloved, and turning on what was left of his psychic powers, manages to save Athena from sure death, and blasts out of the ruins. Afterwards, Kensou and Bao, who had been waiting outside, pass out. What secret connection lies between Bao and Kensou? Will Kensou ever recover his psychic powers? The question lies inside them....

But the question remains without answer. Kensou, despite his incredible actions, continues without a spec of psychic power in his body. The situation becomes certainly critical when Kensou is not as recognized as his fellow Psycho Soldiers in their justice acts. On the border of madness, his beloved Athena, and his foster family, Chin and Bao, help him out in the times of need. Without their help, Kensou would have become a sad young man. Determined to not let them down, Kensou will put all his strength into the fight, in order to maintain justice!

Following their devotion, Kensou and the rest finally arrive at Southtown, where the hideout of NESTS is supposed to be located. However, the moment is not the adequate. With the whole city in ruins, Kensou is shocked at the destructive power of human beings. Suddenly, Kensou notices a falling star in the sky. It is actually the destroyed Zero Cannon, falling to the earth. Despite being reduced to junk, the Zero Cannon still manages to fire several shots before exploding. And one shot is heading right towards Kensou and company! Unable to move because of the fear, Kensou reacts when Bao leaps directly towards the beam. Kensou tries to warn Bao, but it is too late. Bao absorbs the impact of the Zero Cannon blast, but the effect is merciless: Bao plummets to the ground, mortally wounded.

Athena's healing powers are futile, and Chin is hopeless. But Kensou will not allow the only friend he considered to be like a brother to him die like this. Responding to the dying cries of Bao, Kensou makes contact with Bao, mouth to mouth. In doing this, a huge transmigration of psychic power takes place. After the effect passes, Kensou emerges, as powerful as ever! But, at what cost did this power come from...?

Despite the sacrifice of Bao, Kensou has managed to harness his psychic powers once more. Being able to use his energy for justice once more, Kensou is even more pleased when he realizes that Bao has also recovered from the initial shock, but now it is he who is lacking psychic power now. Kensou wonders if this happened when he gave Bao the "kiss of life". Either how, there is no time to ponder such things, as the next King of Fighters tournament is just around the corner, and Kensou joins Athena once again to demand justice from the criminals at NESTS for their atrocities!

Everyone is surprised by how Kensou could recover to full strength in such a short time, after several years of psychic power lack. Kensou has returned to his former self, and will not let anyone stand in his way now! By the end of the tournament, after the downfall of NESTS, Chin notices that there is an increasing power in Kensou's body, the likes that Chin never imagined possible. Kensou admits that he is indeed feeling quite stronger by the minute, but does not know exactly why. Unknown to Kensou is the fact that Bao really does know something about the power dormant within him...and so does an evil man who watches the youngsters from afar: a survivor of NESTS, the renegade Hizoku ninja Ron. Ron makes it his duty to harness the Dragon Spirit that Kensou and Bao share, and use it to build his own empire!

Kensou is a very distracted young fellow. He gets confused easily, but is force to reckon with when in battle. While madly in love with Athena, he tries to do anything to grab her attention, but ends up doing something embarassing instead (his shorts either ripping or falling down, choking on his rice balls). He respects Chin very much, but hates it when he gets all crazy and has to drag him away. He treats Bao as a little brother, but is mad at the fact that he can wield psychic powers and he can't. He's a lively young man, always seeking to live his life at it's fullest.