The story is set in South Korea, where we meet our main character who works at a convenience story, Yeo Eui Joon. He's your typical college student, and he wants to quit this job as soon as possible because of the dangerous work environment (a lot of gangsters frequent this store). However, he feels tied to that place because he gets payed a lot more than usual. Then, he meets Bum Geon Woo (aka ahjussi) who is a gangsters and starts going there daily, and that's how their story begins.
I want to make this review as spoiler-free as possible, hence why the simple introduction to the story. I gave this series a 5/10 because I do not see what other people see in this. Other than fanservice and wholesome moments here and there, it really doesn't feel like a proper thought-out story. I'd say the story was maybe a 6.5/10 by the end of season 2. However, by season 3 the author completly messed up. There's a huge time skip of 3 years between season 2 and season 3 where a lot happens (and a lot of the events that happen during this time skip are really important for the main character) and it feels like certain moments of the story that were very important for the main character were disregarded or just lightly mentioned in the beginning of season 3 which felt incredibly dull. Not only that, (minor spoiler ahead) but the two characters were split up at the end of season 2 and haven't seen each other for 3 years. Then, on the first or second chapter of the third season they meet again by coincidence and they start talking like nothing happens, one of them invites himself into the other's house and next thing you know, they're having sex yet again. All these events that the author wants to make us care for are not portrayed that way by the characters at all. It just feels like empty words.
In other words, the plot is incredibly bad, cliché and doesn't make a whole lot of sense. As I said before, the author writes events that are supposed to be really important and big, but the way they're written through characters it's almost like they're very meaningless.
I also think it's worth mentioning that one should judge certain social aspects of this story through the lens of the culture of the country of this story. I don't think there's anything specifically hard to understand on this one, but I always like to remind everyone of it.
Also, this story has a lot of sex. Like a lot. Which is to be expected of a BL, but it felt like everything lead to sex. Not a complaint, just something I felt like I should include in my review.
So, what are the good things about this series? The art is definitely one, the art is beautiful and without a doubt the artist is incredibly talented on that regard. The panels are nicely done and the conversations are easy to follow.
To conclude, I don't think I'll remember this story for a long time. I recommend it if you like the way the caracters look and want to watch them have uncopious amounts of sex and wholesome moments between them, because other than that, there really isn't much here when it comes to a nicely put out story and plot.