I, the Undercover Agent of the Demon Sect, Was Mistakenly Identified as My Fiancé by the Saint.

I, Su Yun, the Holy Son of the Demon Sect. Today, I successfully sneaked into the righteous immortal sect, Yunxiao Sect. I want to complete the task assigned to me by the Demonic Master and help the sect regain the Holy Demon Stone. Unexpectedly, on the first day he entered the sect, he was mistakenly identified as his fiancé by the Holy Maiden of Yunxiao. It turned out that his fiancé, also named Su Yun, had the same name as me. By making mistakes, I gained the trust of the Holy Lady Yunxiao and rose through the ranks in the Yunxiao Sect. When I took full control of the Yunxiao Sect and married the Saint of Yunxiao, her real fiancé came. Looking at Yunxiao Saint's questioning eyes, I chose a showdown! "Actually, I am not your fiancé Su Yun, but the Demon Sect's Holy Son Su Yun!" This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.