From a Realistic Angsty Novel to a Period Piece as Everyone's Darling

[I'll revise the blurb a bit more later] A father who was condemned as a profiteer for being a traveling merchant, a capable and gentle mother who died young, and three older brothers who would one day fall apart and turn against one another. But right now, all five of them were gathered around the swaddling clothes. The man everyone called Father was overcome with emotion, gazing at his little daughter with blissful love. Their mother, lying in bed, bent her still-weak body and gently kissed the child's cheek, as lightly as a breeze stirring a flower. The gloomy eldest brother, who would later become crippled in one leg and end up in prison after causing trouble, was only four foot three right now, with eyes as bright and black as lacquer. He leaned over the cradle, grinning foolishly as he softly murmured, "Baby, baby... What a cute baby." The second brother, who would study his way into becoming a successful man and never return to his hometown, was clutching a book, his face flushed with a smile. In a fluster, he tugged at his own clothes and stammered to his mother, "Can I... can I hold my little sister first?" As for the mischievous youngest brother, who would gradually grow into a bold and ruthless man, he sniffled and thought foolishly, How can such a tiny little sister be so pretty...? Warnings: * Inspired by the 1970s and 1980s, but not a strictly historical story. * A healing, family-focused wish-fulfillment story. The heroine transmigrates from an angst-filled novel about forced possession into a story set in a bygone era. The author dislikes secondary couples, so none of the characters end up with anyone when they grow up. * Raising and spoiling a child, with understated wish fulfillment in almost every chapter. All the brothers are completely obsessed with their little sister. As an adult, the heroine will have a whole crowd of childhood friends pursuing her. * A story about someone loved by everyone, even awful relatives. The heroine is surrounded by love from the time she's a child being raised by her family and all the way into adulthood. Theme: The daily life of a beloved daughter.