Feeding the Sickly Male Supporting Character

[Physical copy of "Endless Spring" is now available for purchase. For purchasing details, please check @Jinjiang Cola Ginger Soup.] Lu Yunchu transmigrated into a book overnight, becoming a vicious female supporting character obsessed with the male lead. She intended to drug and force herself on the male lead but ended up mistakenly targeting his nominally sickly younger brother, ultimately having to marry him. In the book, this minor male supporting character was merely a plot device, existing only so that the vicious female supporting character could marry him and better obstruct the development of the main couple. The book described him in only a few brief strokes: unable to speak, str...