Responses

I was thinking the same but if you notice the age of Han is 19 while Gan is 18. So either the author forgot how twins work or it is just a metaphor people use for them as they look very similar even for brothers to the point people think they are twins. OR its a translation error. I wish someone would clarify this soon too.
Okay so the brothers are twins, right? So why does it say in chapter 2 that mad dog is in his 2nd year while his brother is in his 3rd year? Aren't they supposed to be....twins? Is this a translation problem or did the author make this mistake? So what year are they actually in??