I'll Bet You Speak First

[Super beautiful, unconsciously seductive, naturally charming MO younger brother X Highly intelligent and emotionally intelligent old fox brother with intense possessiveness and control] Xia Sang'an was born exquisite. For seventeen years, he lived as a Beta with a constitution on the weaker side. On the very first day he moved into the Chen family with his mother, he fell ill. During the high fever, his consciousness was hazy. Someone helped him prepare medicine, fed him water, and placed a palm on his burning forehead. That person's voice was deep and gentle: "Mom and Dad weren't wrong, you are very well-behaved." The voice was all too familiar. In his feverish mind, Xia Sang'an instan...