In one of the arcs, the MC and ML are closely related.
It's easy, at first, to dismiss this novel as just another cut-and-dry isekai novel. It's got added BL elements sure, but the premise - that is to say, the MC accidentally falling into another world - is about the same. What the summary doesn't tell you, however, is the amount of world-building that went into this novel. At only chapter 9, I already know so much about the world the MC now lives in. I know about his family, their relationships, their political goals and machinations. I know about how this world works: the things that drive people in it. Most importantly, I know a hell of a lot about the backgrounds of not only our lovely main character but also the protagonist of the world he's found himself in.
It's slower paced, to be sure, and it doesn't have any face-slapping or revenge so maybe it's not for everyone, but I enjoyed (and still enjoy) it immensely. The characters feel 3D. Real. They're quirky; they have their own goals, dreams, and desires - and even if those ambitions don't always make sense, it never seems out of character. The author did a great job of presenting the characters, honestly.
This has got to be the selling point of this novel really. Like - and this gets into spoilerish territory here (but it's a review, so go figure) - this goddess picks out the smolest bean in the jelly bean jar to transmigrate into her failing world and get the protagonist to amp up his game so they don't all die a terrible death. Basically, our MC is supposed to be a villain, and spoiler alert: he's terrible at it! He's good at his main purpose, however, which is to get the protagonist to push himself. In short, our MC isn't a good villain, but he's also not a saint. He's a person with flaws and lots of character development, which is surprisingly rare in BL novels. (Or just online novels in general.)
Ah, yes, the moment we've all been waiting for: their relationship. Now, I know what you're thinking... "Who is seme? Who is uke?" But all I have to say to that is: Who cares! This novel acknowledged the tropes of seme and uke, accepted them, and then proceeded to add so much depth to the characters that I didn't even care that it was tropey. I usually dislike very overt tropes like 'small, sensitive uke' and 'large, overbearing seme', for example, and this novel does take aspects of that, yes, but for the most part you're too busy questioning wtf is going on and feeling bad for the characters and/or laughing at their misfortunes to recognise the tropes hidden away within their characterisations.
In essence, this novel portrays basically how an actual relationship might work. We're still in the pre-slash stages, however, so this might change as their interactions deepen in meaning, but yeah: no super tropey bullsh*t meant to fetishise gay people. (Which, being gay myself, was quite nice to read.)