His Little Sweetheart Is Too Adorable

[An ultra-sweet, ultra-indulgent romance, with a billion doses of sweetness and pampering!] [Childhood sweethearts + inspiring growth + all the bittersweet ups and downs.] Gu Xuanyang is completely bewildered when the lost, pitiful little thing he picked up turns out to be his next-door neighbor. What bewilders him even more is that the little thing has become attached to him. Gu Xuanyang: “???”