Riser Phenex? DXD SI. Multicross?

Well, have you already been transmigrated into Riser Phenex?

As a all-powerful transmigrator, his power was to receive unique powers from the multiverse related to fire, or so to speak, characters with fire-related powers.

Such as the power of Adolla Burst, like the power used by Sho and Shinra Kusakabe.

Like speeding up to the speed of light, as well as stopping time and moving within this temporal bubble.

Just like the power of the flames of the Zanpakutou of Captain-Commander Genryūsai Shigekuni Yamamoto - Shikai: Ryūjin Jakka | as well as his Bankai: Zanka no Tachi.

The flames of the Mera Mera no Mi used by Portgas D. Ace and Sabo.

As well as the Flames and Quincy powers of Bazz-B, “The Heat”.