Yamaoku Sodachi no Ore no Yururi Isekai Seikatsu: Mofumofu to Saikyou-tachi ni Kawaigararete, Futatabime no Jinsei Mankitsu-chuu

After sacrificing his life to save another, Yuuki is reincarnated into a new world, awakening as an infant stranded in the heart of a freezing mountain blizzard. Resigned to his seemingly hopeless fate, he discovers that a divine blessing—a remarkably resilient body—allows him to survive the harsh conditions with ease. He is soon rescued by a loving family who showers him with affection. Though they appear to be ordinary caretakers, his parents are actually legendary figures, and under their guidance, Yuuki grows into an exceptionally capable child. Now six years old and eager to experience the world beyond his secluded home, Yuuki sets out on a journey toward independence alongside his beloved dog, Pochi. His goal is simple: to live a peaceful life and cherish the warmth his family gave him. However, the road proves far more eventful than anticipated. Along the way, he encounters numerous trials and formidable challenges, effortlessly overcoming each one through extraordinary abilities he barely realizes he possesses. What begins as a quiet, leisurely trek quickly transforms into a kingdom-wide sensation, as rumors of a mysterious, overpowered traveler spread far and wide. Thus unfolds the lighthearted yet spectacular tale of the strongest child raised deep in the mountains, embarking on a grand fantasy adventure in a new world.