島直樹, Lonely Brave , Brave Max
Age: 16 He is Yusakus classmate. He loves Dueling but is not too confident about his skills and had never Dueled in LINK VRAINS however he eventually overcomes this fear. He is also a fan of Playmaker. Hes enthusiastic passionate and tries to be friendly with Yusaku. During his observations Yusaku pointed out that Naoki cannot stand being alone.