Yujin Gōha is one of the six Goha Siblings who collectively act as the true presidents of Goha Corporation, serving under their eldest sibling, Yuo Gōha. As president of Goha Fun Entertainment, a corporate division, he manages entertainment operations and initiatives.

He maintains a laid-back and playful personality, displaying a strong obsession with games and leisure activities. This carefree nature means he seldom engages deeply with corporate duties unless they involve his interests in amusement and diversion. During the conflict concerning Rush Duels, Yujin initially supported the Goha Corporation's stance against the new format. He joined efforts to suppress Rush Duels and confronted Yuga Ohdo and his allies.

A pivotal moment occurred when Yujin dueled Lucidien "Luke" Kallister, employing a water-themed deck. This defeat sparked significant personal change. Yujin developed a genuine appreciation for Rush Duels, shifting from antagonist to supporter and openly embracing the format's excitement.

After Yuga Ohdo defeated Otes and resolved the main conflict, Yujin and his siblings collectively decided to endorse and promote Rush Duels across Goha City, signifying his full acceptance. He subsequently stepped back from active corporate management to immerse himself in playing and enjoying Rush Duels as a personal pastime.