Homebody Ji Xiaoyan just wanted to go home and play video games in peace. He never expected that a sudden car accident would send him to a parallel world that felt familiar, yet was completely different.
When he woke up, he discovered that he not only had a gentle and dependable younger sister, but also bore some kind of mission to "save the world"?! Even more absurdly, the "common sense" of this world seemed completely different from the reality he knew: monsters, supernatural abilities, and a mysterious "worldline correction force"... And he and his sister were the key to preventing a catastrophe!
At first he resisted, but was eventually forced to accept reality. As he complained about how unscientific everything was, Ji Xiaoyan muddled through one crisis after another alongside his sister. His sister's growth, the truth about the world, and the secret hidden behind his transmigration... As he saves the world, he also searches for a path to redeem himself.
"I'm just a homebody! Why did things turn out like this?!"
"Because you're my big brother, of course." His sister smiled and took his hand.
This is a story of a shut-in boy and his younger sister fighting side by side and growing together in a parallel world, where everyday life and adventure intertwine. There are thrilling battles, heartwarming daily moments, and... the occasional bout of social anxiety?
"Let's put saving the world on hold. Today, I'm having hot pot with my sister again!"
