Mc is small, always bullied. His brother and sister hate the mc too. The one who like the mc is his grandfather. But the grandfather dead. And give mc his house. Mc then go to his grandparent house. In the hous he broke the mirror because mc didnot like his face. After that he see some wall become broken. He see another room. When he go to the room. He hear someone says like: "First who come to another world" "The owner of the room" etc There is a weapon in that room like a spear. When mc swing the spear. "Spear skill has been learned" Then mc try to go to the outside. He know that outside the house is safe from monster because a barrier. Mc tried to defeat the monster. Then he get item for defeating the monster. Mc back to the house to sleep. In the morning mc body growing and his face change. Because there is no mirror he didnot know how his face look.
Isekai de Cheat Skill wo Te ni Shita Ore wa, Genjitsu Sekai wo mo Musou Suru ~Level Up wa Jinsei wo Kaeta~ Same as the LN/WN Japanese title English is - I Got a Cheat Ability in a Different World, and Became Extraordinary Even in the Real World