Responses
I believe he left to learn the family business and make the deal with his older brother in order to be able to provide for Issac and also have something to work towards. As for reappearing, I think it was just a ploy with the friend and also it being a good stepping point in their business to collaborate as well as feeling comfortable enough to step away from his brothers company.

Did I miss something? I don’t understand why Theodore (seme) left school like that and appeared so suddenly in Isaac’s life (uke).
The art is so beautiful it’s impossible to not admire it.
I wish they get married and adopt a child, Isaac has proven what a good father he is.