I don’t think this is a masterpiece or anything but I think anyone who thinks it’s cliche is missing the really obvious subtext: MC is not an Egen guy, he’s a Teto. It’s set up right from the beginning; the coworker wants to send the quiz to him and he takes the initiative to find it himself. He constantly surprises himself by taking an active role— he shows up to the date on Saturday and tries to teach the FL, he protects her from the son of the client without thinking about it, he bakes the sweets for FL without prompting. According to the chart in Chapter 1, it sets up that Teto girls like Teto guys, so that’s why the FL is interested in him. We only think he’s an Egen because he says that’s what he is. I guess the intrigue will come with whatever tragic backstory he has, explaining why he thinks he’s an Egen. Side note, the coworker totally likes him because she is an Egen and has incorrectly clocked him as one as well.