This Slime Has Become a Spirit, and It Actually Wants to Become a Human?

This article refers to some skill names and settings of the game "Dragon Quest". It is not completely included and there are additional modifications. It is only used as a partial reference. Of course, there are also introductions and explanations. Thank you for your understanding. "Do you think I look like a human or a ghost?" Zhang Xiaolin is a slime who traveled to a different world three years ago with the purpose of returning to modern times. But the system that came with it slapped me hard. The resulting system is a piece of garbage called [Sacrifice Flow], which can be redeemed for items every five levels. In exchange, each exchange will consume the level value cultivated. The most ridiculous thing is that the 100th level redemption reward is a return to modern times, but the redemption conditions add a racial requirement, and you must be a human to redeem it. But how can a monster, or a slime, transform into a human? It seems that only the devil has this skill. Fortunately, there is no hard requirement for the reward at level 50 of the Sacrifice Stream, and the reward is an omniscient and omnipotent [World Illustrated Book]. The moment I opened the illustrated book. It seemed like there was another way to go besides joining the Demon King... Just in time, the Demon King gave me a mission.