Ren

Ren (蓮, Ren) is a character from Yu-Gi-Oh! ARC-V manga series.

Yūya vs. Sora
Ren first appeared along side EVE, watching the Duel between Yūya and Sora from unknown place. When Sora was defeated by Yūya, Ren rescued Sora under EVE's order. Riding his D-Wheel, he instantly appeared from a dimensional space, taking Sora with him and disappeared. After he retrieved Sora, he continued following EVE's second order to search through Yūya's memories. Taking opportunity while Yūya was still unconscious from the previous Duel, he found his way into Yūya's mind through hacking his Duel Disk.

Duel Against Yūgo
Looking for Yūya's memories, he was chased by Yūgo who came to stop him, leading to a Riding Duel between the two.