By the Grace of the Gods 01 (Manga)

Slime's up for one recently deceased middle-aged businessman! When the gods reincarnate him in another world as a boy with magical powers, he discovers that magically-tamed slime are an untapped natural resource!

Upon his sudden death, middle-aged otaku businessman Ryoma Takebayashi finds himself in a curious situation. Three gods request his cooperation in their divine plot, which requires him to reincarnate in another world as a young boy! Equipped with magic, young Ryoma undertakes a care...