TV-Series
Description
Enju, also known as Enjyu, is a central figure marked by complex development. He sports deep red spiky hair, changed from medium blue due to past trauma, light blue eyes, and a prominent lightning bolt-shaped scar. Standing 167 cm tall and weighing 45 kg with blood type RH- A, his attire evolves from a purple lightning-motif jumpsuit with shorts to pants and later, during Fire Spirits, a button-up purple top with lightning designs, red straps, longer hair in a ponytail, and black gloves with beaded wrist collars and metal knuckles.

Initially cynical, vengeful, and ruthlessly power-hungry from childhood trauma, his resentment grew after being forced by his father Taiju to intentionally lose underground B-DaBattles for money. This bitterness intensified after Cornell's betrayal during a junior tournament finals—involving either false cheating accusations or physical obstruction—leading to public disqualification. These events cemented his allegiance to the Shadow Alliance, where he embraced manipulation and cruelty, exemplified by brutalizing Liena and psychologically tormenting opponents like Wen Yong Fa.

His B-Daman journey starts with Shred Kaiser before acquiring Lightning Kahn, the superior twin to Yamato's Cobalt Blade. Later wielding Blazing Kahn and Variable Kaiser, he employs specialized shots like the Black Drive Shot, Volcanic Magnum, Volcanic Magnum Maximum, and Variable Magnum. He achieves victories against Berkhart, Nigrim, and Terry McScotty but suffers defeats by Yamato Delgado and Marda Biarce.

Enju undergoes a pivotal shift during the IBA Winners Tournament finals against Yamato. Enhanced by Marda B's dark magic and Blazing Kahn, he disregards Ababa's commands for honorable combat, leading to a grueling 40-round loss. Saved by Yamato from Ababa's retaliation, he experiences a Heel–Face Turn. Post-redemption, he retains sarcasm but demonstrates loyalty, participating in missions to dismantle the Neo Shadow Alliance. He infiltrates their ranks as a Fake Defector, collaborating with Li Yong Fa for intelligence, though Marda B temporarily captures and brainwashes him before Terry secures his freedom.

In Fire Spirits, Enju grapples with residual anger, particularly towards Yamato. He fights in underground cage matches for survival but rediscovers his B-Daman passion after Kevin, a boy nursing him after a snowstorm injury, becomes his mentee. His battle against Ludo—where he destroys Ludo's B-Daman to reclaim the Black Drive Shot—reaffirms his competitive drive, straining his bond with Kevin. His primary objective shifts to legitimately defeating Yamato, symbolizing his rejection of past corruption.

His interactions reveal nuanced dynamics; he maintains friction with power-obsessed figures like Cain McDonnell yet forms uneasy alliances with former rivals like Gray and Wen. His motorcycle entrances underscore a flair for dramatic appearances. Evolving from a solitary antagonist to a grudging ally, he ultimately joins collective efforts against threats like Marda Biarce.