When Qiao Su was eight, her family adopted an older brother with a different surname and no blood relation to her: Chang Yucheng.
At first, she felt nothing for him. Later, Chang Yucheng took meticulous care of her. As Qiao Su lowered her guard and gradually accepted him, she realized she might have fallen for her older brother.
She thought she was hiding it well, but as time passed, her feelings grew deeper and became harder and harder to conceal.
She had meant to keep this secret forever, until someone leafed through her diary about her unrequited love.
Qiao Su could only carefully watch to see who had read it, while anxiously fearing her brother might find out.
Whenever she caught Chang Yucheng looking at her as if he might be watching, Qiao Su would blush in a panic.
Perhaps it was all in her head, but Chang Yucheng seemed to tease her more often, always smiling at her and agreeing to even the most outrageous requests.
Until she discovered that she wasn't the only one hiding these feelings.
*She thought it was a long-standing secret crush, but it had actually been years of being cherished.
[Also known as: When a Little Sister Falls for Her Older Brother, It's Obviously All His Fault!]
Male lead: (being mischievous) Who doesn't love teasing a little sister who blushes easily? She's so cute~
Female lead: (relieved) My brother still hasn't realized I like him today. Thank goodness!
Chang Yucheng: Cold and aloof on the outside, but an absolute doting sister fanatic
Qiao Su: A quiet, bottled-up type on the surface, taught by her big brother, but cheerful inside
One-on-one romance, school days, childhood friends, pseudo-incest, happy ending; a one-sided crush turns mutual and out in the open
Content notes:
1. Everything about school life in this story serves the plot.
2. It opens in the second year of high school, and they realize each other's feelings during that year. The unrequited-love portion won't be very long.
(This blurb was written on July 14, 2026.) Expected to launch in early November.
Theme: To our most passionate school days.