Koko wa Ore ni Makasete Saki ni Ike to Itte kara 10 Nen ga Tattara Densetsu ni Natteita - Chapter 164 - Attack of the Dark Ones

Chen Mo a game designer got sent to a parallel world with advance technology but undeveloped game concepts.

Qin Xi had been reborn. She was reborn in 1983 when her family married her off to a fool, and she had accidentally inherited the Mysterious Doctor techniques on the day of her rebirth. She only had four bare walls of the house? She was bullied by others? Qin Xi looked down at her own hands and her medical skills and decided to start her journey of self-improvement. Since then, with silver needles in hand, she has not only cured her foolish husband, but she also schemed and kicked out her outrageous relatives, leading to her husband’s family becoming prosperous…After successfully becoming a wealthy woman, Qin Xi thought she could finally breathe a sigh of relief. However, her husband hugged her from behind and whispered into her ear, “Darling, we haven’t had children yet…”

Maid, older sister, younger sister, and even mother, all of them.

Have you ever seen exposing holy vein?