Shoulie Youxi

"Teacher, I know your secret crush. It was my dad, wasn't it? If you want me to keep it a secret, then become my lover." That threat threw Ye Qing's life into chaos. When he was 19, Ye Qing had a crush on his private tutor. 18 years later, all those repressed feelings were revealed, and Ye Qing was forced to play a lovers game with his teacher's son. Despite their 18-year age gap, he felt powerless under the younger man's aggressive tactics.
(Source: Bilibili, translated)