My Monument in Your Name

Gentle, Cold-blooded Ambitious Schemer x "Witch" Young Miss (Pseudo-siblings, 200k+ words, not paywalled) 1. Before He Qiyue was born, everyone praised the He family’s adopted son, Pei Xueqian, for his youthful intelligence and inner brilliance, destined to become an outstanding talent like an orchid or jade tree. After He Qiyue was born, Pei Xueqian did indeed grow into an orchid or jade tree, but he also became known as "the He family’s watchdog." Once she grew old enough to understand, He Qiyue always feared that Pei Xueqian would resent it. But her brother treated her just as well as he had when she was little, spoiling her endlessly, personally handling every matter related to her...