I Got a Cheat Skill in Another World and Became Unrivaled in The Real World, Too: Real World

Yuuya Tenjou has struggled with a difficult home life, facing resentment from family members and others. A significant loss occurs when his grandfather, the one person who showed him kindness, passes away. In an attempt to cope with his situation, Yuuya tries to be helpful to those around him, but ultimately becomes overwhelmed by the abuse he receives. His life takes a surprising turn with the discovery of a secret door in his bathroom, which leads to an abandoned house in another world. This house, once owned by a sage, provides Yuuya with access to unique equipment and resources, including game-like stats and extraordinary items.