Xu Luoyi, a career elite who is supremely rational, has no "younger brother" option in his life plan. Until Lin Shu, a pet doctor who was six years younger than her, broke into her world with an attitude that could not be rejected. He called her "sister", but loved her in the most mature manner - seeing through her fragility, catching her collapse, and gently peeling her away from her self-imprisonment with firm approaches again and again. When the whole world questions Nianxia's sincerity, he has planned his future to include every moment with her. Love is willing to make exceptions for him, even if it means subverting all principles.
