As Raiser Phoenix with Yin-Yang system

The great Yin-Yang Phoenix, the strongest mythical beast entered the stage of rebirth but the reincarnation god saw him as a future competitor and send him out of the cycle. The wandering soul met a playful entity that gave him a second chance to reborn in an another world..........

Being reborn and assimilated all the memories of the boy his first words left not only that entity shocked but also more interested in him and decided to watch him closely...
His words are.... "Mortal world... Upgradeable Heaven ranked Physic... World was close to awakening... it was easy to win over... Whomever sent me here send me to another place more challenging...

That being sent him into DXD, With the memory of the boy it was easy for him identify this world but just he was about to complain he got a message with a timer to get him as strong as he could before the upcoming event happens

{*!@#$%^&^%$#$%^&*()(*&*(*(*&^%$#@#@#$%^}

"NOW THIS IS WHAT I'M TALKING ABOUT"