Shingo Komoi is a main character of the second arc of Cardfight!! Vanguard (V Series Anime). He is a fan of everything related to Cardfight!! Vanguard, he is especially a fan of Aichi Sendou. During the fight against Wandering Star Brandt, he becomes the embodiment of Blaster Dagger, who is one of Monarch Sanctuary Alfred's strongest soldiers.
He is extremely devoted to Cardfight!! Vanguard, to the point where he is protective of his idol Aichi Sendou and his ambitions. He can also be judgmental of others, as seen in Image 30 when he is accused of stalking Kourin Tatsunagi, to which he shuts her down. Despite his constant arguing with Naoki Ishida, they quickly became best friends. He regrets how easily he became a PSYqualia after losing against Rekka Tatsunagi, and tries to defend Aichi from other Zombies, and later joins the search to find Aichi after becoming a Zombie.
He has large, wiry, round glasses and brown hair in a bowl cut. His eyes are a dark shade of umber. He normally wears the Miyaji Academy High School male uniform.