Through the discovery of the wondrous new world of Gaia, Arashi went back to his home through the portal and quickly decided to spend his time working on a serum to cheat death. It took him nearly 300 years to complete the serum which eventually graduated to a pill.
After completion of his work, he decided he wanted to know how the world of Gaia was doing. After going back through the portal, the first noticeable thing was that everything was practically the same and everyone looked as if they had only aged by about a month. Puzzled by this, Arashi quickly jumped back through the portal, only to find that everything he had left alone was now rotting. How he had missed this the first time around he did not know. Now, though, he knew that his world's time line moved much more quickly than Gaia's.
Arashi now spent his time to work on a clone to act as himself while he stayed in Gaia. It took him many years to complete it, but the final outcome was a success. His new clone quickly grew to an appropriate age at which he could be passed off as Arashi. With this, Arashi quickly left to go back to Gaia.
Spending his time in a local park, Arashi got to know many of the residents of Gaia. One such resident, Cucco, he met as a result of sleeping under a tree. She and her friend Amathi approached the sleeping demon, who, with his enhanced hearing, woke up to greet them. The three became fast friends and not a month later, Arashi and Cucco became what was known in Gaia as a "couple". Eventually, Arashi showed Cucco his own world. He brought her to his home in the valley that he occupied and explained the time differentiation between the two worlds. After spending the night at the house (NO YOU PERVERTS!!) they quickly went back to Gaia, only to find that less than a second had passed since their departure.
As the months went by, Arashi soon learned that apparently, his father waged war on the scorpion demon kingdom. As a demon from the raccoon kingdom, Arashi was forced to go to war.