No, I’m speaking from my experience in reading both BL and these types of webtoons/manwhas AND from reading the author’s other works. Could there be a gay character in the story? Sure. Is there romance in this story? Not as far as we know. But one thing is sure: if romance became a factor, the main character isn’t a BL character. Stories meant to be turn into BL have a specific energy and flow. This isn’t it.
This website’s comment section LOVES to read webtoons in the action/fantasy genre like this and Eternally Regressing Knight, just to spot bromance and ship men who aren’t going to be a thing because apparently, men can’t be too friendly or they’re gay. Your last sentence speaks exactly to that point. Then the comment section stops being about the story and about whether this is BL in the first place. It’s not and if romance became a factor, it wouldn’t be. I don’t understand why this needs to be an argument either, especially when I already told the top comment that it isn’t BL and there isn’t a romance tag here. Wanting to argue about it is beyond pointless.

is this BL on my other piracy marked it as one LMAO