Two souls shattered by their families of origin meet in a virtual world: the gloomy, ill-ridden Weidu Lou and Ci Hexi, who pretends to be cheerful. Like hedgehogs in the dead of winter, they try to warm themselves with an embrace, only to leave each other bloody with their quills. He takes her love as his only salvation, while she destroys herself to escape love's suffocating grip. When "keeping each other warm" becomes "burning each other alive," this love story in the name of redemption proves, in the most tragic way, that some abysses can only be fallen into alone.