Alex is a replacement for Sebastian's crush, Eddie. He seems totally smitten with Sebastian, but really it's all an act. He's only using him for money. When Eddie is back in town and moves into Sebastian's place, the first thing he says to Alex is, "Leave Sebastian for me." [Original Manhua](https://m.kuaikanmanhua.com/mobile/21437/list/) **Official English:** [Webcomics](https://webcomicsapp.com/comic/The-Substitute-Wins-His-Heart/68255abe62661d25fc788325), [Webnovel](https://www.webnovel.com/comic/the-substitute-wins-his-heart_35828331500989101)

Sheng Xi is an elite CEO by day, but by night, he leads a double life as a barely safe-for-work streamer… One day, the company sends a handsome and cheerful second-gen wealthy idiot his way to serve as his assistant. Now, he has no choice but to juggle between hiding his secret identity and putting up with this foolish rich heir. Except… this seemingly clueless golden-retriever-like assistant seems to have a few secrets himself~ (Source: KuaiKan, translated)