The Master of Beyblades (Beyblade Metal Fusion)

Meet Kyougoku Masamune, he is the heir to the Kyougoku family. Generations, his ancestors were masters of Beyblades because they specialized in all four types of Beyblades: Attack, Stamina, Balance and Defense. Now, the four Beyblades of those specific types, Imperial Dragon Ignition, Lightning Pandora, Regalia Genesis Hybrid and Colossal Helios were passed down to him as he was the next in line to inherit them and were trained to master them. He then meets Gingka Hagane. A young Blader who is searching for his hidden past, together with his partner Storm Pegasus in Metal Bey City and Kenta, where he meets new friends and rivals. Gingka intends to defeat the evil Dark Nebula organization and Ryuga, a man with the Forbidden Bey known as Lightning L-Drago. Unaware to Kyougoku, that he will have many boys falling for him along the way.

This includes
bxb
Bl Harem
maybe smut also depending on where the story is going.

Note: I don't own Beyblade Metal series. I only own the story and my OC.