Wen Yong Fa, the brash and stubborn elder Yong Fa brother, wields formidable martial arts prowess tempered by arrogance. His fierce loyalty to loved ones clashes with manipulative streaks, especially toward younger brother Li, whom he coerces into morally gray deeds during their early Shadow Alliance tenure. At 142 cm and 39 kg, with blood type O and a May 7th birthday, Wen’s physical stature belies his combative intensity.

Initially a Shadow Alliance enforcer, Wen employs deceit to challenge Yamato Delgado on Delta Rock and dominates IBA Winners Tournament qualifiers by defeating Sae and Zorna. A semi-final clash with Enjyu forces a moral reckoning: abandoning underhanded tactics for fair play, even in defeat, earns him Yamato’s respect and alliance.

Central to Wen’s growth is his fraught bond with Li. Emotionally reliant yet controlling, Wen faces turmoil when Li joins the Neo Shadow Alliance. A flashback reveals Wen’s reluctance to confront Li earlier, but he later battles Marda B’s influence over Li, reconciling through a duel that mends their fractured trust. Transitioning from antagonist to steadfast ally, Wen aids pivotal missions—training Sly’s recruits, combating Shegen in Wygene, and confronting Marda B in the final showdown.

His B-Daman evolves from Bakuso to King Bakuso and Suiseiryu, wielding dark blue B-DaBalls across combat formats like Direct Hit and Trap Shooting, often partnering with Li in tag-team strategies. Notable victories include clashes against Neo Shadow soldiers, Shegen, and Marda B, balanced by a joint loss with Terry McScotty against Cain McDonnell.

Rooted in Chinese heritage, Wen’s journey mirrors familial dynamics where younger siblings surpass elders. His arc culminates in unwavering loyalty to Yamato’s group, embodying resilience and redemption through principled combat and brotherly devotion.