Isekai Munchkin -HP 1 no Mama de Saikyou Saisoku Danjon Kouryaku-

Kirihara Yukito, a reclusive young man, finds his ordinary life turned upside down when he is reborn in a mysterious realm. His quiet existence with his devoted sister, Sana, shatters when a monstrous creature assaults them, hurling Yukito into the enigmatic “Ever World.” Upon learning that Sana has also been transported to this strange land, he resolves to traverse its dangers to reunite with her. Armed with determination and an unbreakable bond, Yukito embarks on an extraordinary quest through the unknown. The Ever World presents countless trials, but his love for his sister fuels his courage. As he navigates treacherous dungeons and encounters bizarre creatures, his journey becomes one of survival and discovery. Every step brings him closer to uncovering the secrets of this new reality. The deeper he ventures, the more he realizes the stakes are higher than he imagined. Yet, no obstacle can deter him from his ultimate goal—finding Sana and ensuring her safety. Their unshakable connection drives him forward, transforming a once-timid shut-in into a relentless adventurer. In this unfamiliar world, Yukito’s story unfolds as a tale of resilience, love, and the unyielding pursuit of family.