Ryoma Takebayashi never had a blessed life, but after his death, three great gods reincarnated him as a child in another world with swords and magic! Ryoma decides to live leisurely on his own, and his passion turns out to be researching slimes!

Rentt Faina is down on his luck, and the dragon that kills him marks the end of his journey...or so he thought. He may be a pile of bones now, but not even death will stop him from achieving his goal of becoming a Mithril-class adventurer!

Rentt Faina, a decade-long adventurer, has been swallowed whole by a dragon inside the Labyrinth of the Moon's Reflection! Reborn as a Skeleton, will he succeed in his goal of Existential Evolution and return to humanity once more?