[Age difference + male crush + two-way redemption + top student + guiding lover + attachment personality]
[The younger brother who is paranoid, glass-hearted, and a master of academics: Songnan VS the older sister who is mature, successful, and intellectual: Shen Yanxi]
That day, Songnan was standing at the beach and met Shen Yanxi, who mistakenly thought that she couldn't think about it. From then on, Shen Yanxi began to "raise" him in the name of her sister and sent him back to campus.
On the same day, Shen Yanxi got divorced and Songnan beat her sister's ex-husband. The snow is still heavy, but it cannot hide my hot beating heart in the cold wind.
…
On this day, Shen Yanxi said to Songnan: "Songnan, you have a family. A home that belongs to you."
He kept these words firmly in mind and murmured to himself: "Sister, I have a family, a home that belongs to us."
…
When I met you, you saw all my troubles.
After meeting you, I saw all your courage.
"Sorry, I'm late, sister."
"Songnan, your arrival comes at the right time."
…
PS: This book is unpleasant, but sweet, and may be a bit sadistic (I can't guarantee it). If you don't like the sibling relationship with a big age gap, you can leave it out (male is 17, female is 30.) The age of the heroine has been slightly reduced by 1 year.