As the trapped mana within Osiris's body surged and turned like the waves of a chaotic ocean, his strong will took hold of the mana and wielded it to wash over his skin and muscles like paint over a canvas.
Eventually, after what was probably about an hour of refinement from the sun's position in the sky.
Osiris felt his skin and muscles absorb so much mana from the lion's body that it couldn't absorb any more, fully saturated with mana and strengthened to a degree that was incomparable to when he was in the early stage of the first order.
At this moment, Osiris had finally reached the peak stage first order, using every bit of mana the mid stage second order lion could provide, which was multiple times the amount a normal peak stage first order beast could provide.
Though osiris would now need to consume multiple more second order and maybe even third order beasts just to reach the second order as the mana needed to refine the bones and viscera was much more compared to the skin and muscles.
Standing up and lookin at the sun, Osiris knew he had several more hours of daylight left before he had to head back.
And though he could spend the night in the forest as well and hunt all night, he promised he would bring home meat for dinner, and Osiris always kept his promises.
And he would be lying to himself if he said he didn't look forward to the possibility of sleeping with Eris again tonight.
Clearing away his distracting thoughts, Osiris spread his gargantuan wings and shot into the sky, ready to search for his next prey.
After leaving the house at about 7am in the morning, it was now around 6pm in the afternoon with the sun starting to set and the sky turning into a myriad of beautiful colors of red, orange and pinks.
Osiris was on a large hill somewhere a couple tens of miles deeper into dusk forest from where he fought the lion.
After fighting all day and consuming about 3 early stage, 4 mid stage beasts and even 2 peak stage second order beasts.
Osiris finally accumulated enough mana within himself for one last final push.
The reason he killed all of those second order beasts and accumulated the mana instead of using it immediately was because a special technique inside of Osiris's inheritance told him about a special way to cultivate his skin and muscles one last time before stepping into the second order.
The special technique he learned told him to accumulate a vast amount of mana within a short span of time and push the mana all at once into his skin and muscles, however this technique was very dangerous and only used by those with a firm will as when you overload your skin and muscles with so much mana, it will result with the determination and destruction of said parts.
However after the destruction of his skin and muscles, it would allow the mana to reform them again, even purer and stronger than before.
This technique was only used by powerful beings who could kill and consume many mana beasts in a short amount of time like Osiris, or rich clans that sent many strong servants to fetch multiple beasts or higher order beasts for their young masters to consume.
However very few chose to use this method as the pain was unbearable to digest when your skin and muscles were literally melting off of your body and growing back afterward, and it required a high pain tolerance and will.
Otherwise if you stopped midway through the procedure, you would only be left with destroyed skin and muscles for the rest of your life and waste all of the mana if you were lucky, if you weren't, you would most likely die either due to blood loss or some other reason.
Osiris found this hill after killing the peak second order beasts that ruled over it and claiming it for himself before deciding it was time to begin the procedure when he sensed no beast near him, likely scared off after the battle.
He sat down on his hind legs, with his back straight up like a dignified lord would be seen sitting on a throne, and forcefully willed all of the mana within himself to flood the already fully saturated skin and muscles in his body, immediately leading to the rapid deterioration of his body.
Osiris almost let out a blood chilling roar as the pain was almost unbearable to him, a lot worse than he was honestly expecting.
He thought that since his body was so tough and all the beasts he had fought so far barely made him feel any pain, that his tolerance must be a lot higher than he thought.
Though that was true, the pain was simply that unimaginable to go through.
Osiris didn't scream though, as he felt that it would bring shame to himself if he were to cry out in pain, painfully gritting his teeth as he felt the skin melt off the top of his head first and slowly go down his body towards his feet.
While his skin was one thing, his muscles were another as all of his muscles dissolved in the same way as his skin did.
Though unlike his skin, his muscles affected him more as they brought not only a lot more agonizing pain, but when his muscles melted, he could no longer hold himself up and his body limply fell to the floor.
The only thing Osiris could focus on was holding the mana in his skin and bones and not allowing it to go haywire and leave his body from where the skin had melted.
When his skin and muscles where fully melted off of his body, osiris suddenly felt more pain though not as bad as the melting pain, erupt from the top of his head
Osiris could feel the new skin and muscles begin to quickly form from where the old ones used to be.
Once it was fully finished, Osiris layed on the hill in a daze, collecting himself from the absolute hell he had just gone through.
30 minutes later, Osiris finally breathed a sigh of relief in the fact that it was finally over.