Duel Academy (ARC-V)

The Academia (アカデミア Akademia) is a mysterious group mentioned by Yuto in the Yu-Gi-Oh! ARC-V anime. Currently, nothing is known about it other than that it is somehow connected to Leo Duel School. Likewise, it has been hinted that those belonging to this group focus on using Fusion Summoning.

History
During his Duel with Shingo Sawatari, Yuto asked about the connection between Leo Duel School and Academia. Upon realizing that Shingo knew nothing, Yuto attempted to leave, but Shingo reminded him that the Duel wasn't over and activated a Trap Card in an attempt to defeat Yuto that turn. Without even turning around, Yuto responded with a Spell Card that could activate from his Graveyard, defeating Shingo.

After Shun duels Sora, it is implied that the latter is somehow related to The Academia, as Reiji mentions they could learn more about it from Sora.

Trivia

 * Academia seems to be inspired from the Duel Academy (named "Duel Academia" in the original Japanese version) from Yu-Gi-Oh! GX. Just as its members use Fusion Monsters, Yu-Gi-Oh GX heavily focused on Fusion Summoning, although this group does have one Synchro Duelist as one of their members.