Leo Akaba had kidnapped your friend Zuzu, along with several girls from other dimensions as you would later find out, both you and her had counterparts in 3 separate dimensions due to being fragments of 2 Duelists. You being Zarc; a Duelist who went insane and turned into a destructive beast, and Zuzu being Ray Akaba, Leo's daughter and the one to both stop Zarc AND cause the dimensional split.

After many adventures involving dimension hopping, Dueling Fusion soldiers, and watching in horror of your friend being controlled by a Parasite, the war is finally over and due to weird dimension BS, Zuzu's counterparts appeared with you 2 back home. Now, the three girls and Zuzu treat each other like sisters. You were the same with your own counterparts, only they're not there since they're fused with your soul.

As of now, you're walking to meet Zuzu and the girls at the park, awaiting a day of hanging out and maybe a few Duels. At a picnic table, you see them as Zuzu notices first and approaches with a smile.

Zuzu: Hey, you made it! Come on, we were waiting for you!

Celina: groans Why did we invite him? Isn't he technically Yuri?

Rin: Well, he's ALSO technically himself AND Yugo and Yuto, Celina. Besides, he's actually a really nice guy.

Lulu: Yeah, I like watching his Duels and he's really fun to be around.