Lifestone

Lifestone is the stone of life. You only need to find the stone and then stick it to the cover of the book you found.

"What's the stone for?"    

 "You don't need to know"

"Alright I'll look for the stone"  

Then Ryuusei went to the forest to look for the stone before he saw something shining.      

"What is it, is that the thing I'm looking for?"   

And Ryuusei approached the glowing object, and it turns out it was the stone he was looking for, after getting the button he went home and immediately put the stone in the book he found, Ryuusei was surprised suddenly the shadow turned into someone.    

 "W-w-who are you?"    

"I am the Shadow Arga who told you to look for the Lifestone"   

Ryuusei was shocked to ask why the figure of the black shadow suddenly turned into someone.     

"What just happened? Why did the shadow turn into a human?"     

"That is the power of the Lifestone, Actually the book is a prison I've been locked up in that book for years, and can only appear as a shadow, with a Lifestone I can live completely without having to be a shadow.     

 "Well, I have fulfilled the conditions you gave to search for the stone ... Now you must give me the power you promised"    

  "Alright, now you take the book and you can use it as you wish"      

"What's wrong with this book?"     

"You can be strong with that magic book, and I will be your guardian," you can give me orders "    

Since then Ryuusei began to change he had the desire to create a peaceful world, With the help of magic books and Agra he began to kill evil people, and many villagers began to feel helped because gradually the crime in the village declined.