Manga Solar Eclipse

"You want me to pretend to be the prince’s mistress? Looks like an easy payday!" Lai is a man who is known to solve any problems for cash in the underworld, and Edwin, the head of the noble Theodore family, has entrusted him with a secret mission. He needs Lei to replace his missing brother Ellen; fortunately, the two are almost identical. The aristocracy is full of rumors of Ellen’s love affair with Prince Hector. Lai, now living as "Ellen" in the royal palace, is subjected to ill-treatment and repeated abuse. Where the hell is the real Ellen? What secrets hide the relationship between the crown prince and his beloved?

Official Chinese translation