I Became the Mentor of the Weakest Demon King

I Became the Mentor of the Weakest Demon King is a heartwarming tale that explores the challenges of raising a child - even if that child happens to be a demon king. Join the protagonist on a journey filled with comedy, drama, and fantasy as he takes on the role of mentor in a fantastical world. With elements of shounen and slice of life, this web novel provides a unique and engaging reading experience.