Confinement in Disguise

[Male secret love + sister-brother love + 3-year age difference + male competition + 1V1 + poor status + foster care literature + top wealthy family] (Human-machine heroine* a male protagonist who tries to make people use robots to have real feelings) Jiang Lishan, the heir to a top wealthy family, had everything arranged by his parents since he was born. He finished college at the age of 16, graduated with a doctorate at the age of 20, and entered the company to take over the family business. Her life was so perfect that nothing ever went wrong. If something really happened, it would probably be that on her 22nd birthday, she and Xie Xiuyan, who was three years younger than herself, staged a "one-night stand" drama in a hotel. When she woke up, the 19-year-old boy looked at her with a smile, emotions surging under his dark eyelashes. "Sister, I am a feudal man." "……." This relationship started out of nowhere and was hidden from everyone, including Xie Xiuyan's secret love. — Xie Xiuyan was sent to the Jiang family for foster care because of her father's accident. In that extremely luxurious villa, he met the eldest lady who the servant said was born with emotional deficiencies. At first, he insisted that they should live in peace with each other and never offend each other. Later, he wants her to fall in love with him. Later, he discovered that it wasn't that she didn't know how to love, she just didn't know how to love him. (Emotionally deficient female protagonist/secretly in love with foster care male protagonist) ——Muzzling a cold stone heart