Fox Demon Love God

There are demons in the world, demons fall in love with people, and demons live for tens of millions of years. Human life is limited. When humans die, demons live. People will be reincarnated, but after reincarnation, they will not remember the love of the previous life. If the demon is infatuated, he will go to the fox demon to "purchase" a service that allows the reincarnated person to recall the love of his previous life. What happens when a modern otaku comes here? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.