Sinful Twins

She looks cold and frosty on the surface, but she can't hide her bad nature. Only by seeing the ice in his eyes could the ice melt. He had a smile on his lips, as gentle as jade, but who could see the deep alienation in his eyes? Only when he saw her would he reveal his true smile. They are inseparable twins who will sacrifice everything for each other. Let's see how one brother controls and the other sister controls the world of immortality and stirs it up. The author is a newbie, please give me some advice on my shortcomings. This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.