So... I've just realized that Tasuku Ryuenji (Future Card Buddyfight)

And Shu Kurenai (Beyblade Burst)

Has a lot of things in common

1. A rival to the main character

2. Being shipped with the main character

3. Both turned evil (Shu Kurenai as Red Eye and Tasuku Ryuenji as The Purgatory Knight.)

4. Have a monster companion (Shu Kurenai's Spryzen and Tasuku Ryuenji's Jackknife)

5. Uses some kind of game (Shu Kurenai being Beyblade while Tasuku Ryuenji being Buddyfight cards)

6. This pic

So. That's it I guess