Yu-Gi-Oh! ARC V: Jun

And we have here another work for Jun, Yuji's counterpart in Synchro but turns out he's from the Fusion Dimension. Yuji is Shizuka's younger brother whom was lost when they were younger, as it turns out, Yuji has discovered an ability within him that he was afraid to reveal to Shizuka. Just like Yuji, Jun can create real damage with his monsters, the fact that he almost hurt a certain playmate of his, and cause him in a coma. This made him decide to run away, at a certain point, and he was taken in by one of the professors in Academia. 

However, an innate trait of Jun is curiosity. While exploring his new home in Academia, he came across a certain floor, emitting strange lights. As he went inside, he had discovered some scientists (and professors) working on a certain portal, wherein it would create a colorful spectrum and then would disappear in a short time. Jun sneaked in and when another portal was activated and tested, a strong wind had took hold of him, while the other scientists tried to hold their guard on one of the equipment. As soon as one of them had turned it off, Jun was taken in by the force of the spectrum (gravity I guess o_o) and was transported to the Synchro dimension. 

There he was taken among the Commons, but after his skills were discovered by Jean, he was taken under his care and control. 

Yuji is known to have mastered two summoning techniques: Fusion and Synchro, but dominantly uses Synchro to his advantage. 

Yu-Gi-Oh! ARC V (c) Kazuki Takahashi
Jun, art (c) me