My word, this is actually a good, moving story.
A BL comic without any rape, no asshole MC, no completely unrealistic sex, and no totally contrived developments? ...I almost don't know how to process that. Heck, this story gets two thumbs up just for the crap it *doesn't* have in it.
Basically, [Editor x Mangaka] that have both been heterosexual their whole lives start figuring out that they "might" be bisexual. Editor quickly recognizes his growing affections and physical urges and becomes comfortable with the idea of exploring them. The Mangaka doesn't understand "love" as a concept, because he has never felt it. He can't define it or put it into words; this frustrates him and makes him feel alienated, since it seems to be something that comes so easily to everyone else. Because of this, he is very cynical about the idea of love and also cynical about what people say. For example, somebody wishes him "Happy New Year" and his thought in reply is "Those are just empty, meaningless words" or something similar.
Watching the development of these two characters (individually and as a couple), especially the mangaka's personal struggle with being "different" and his struggle to depict an emotion in his manga that he himself has never felt or understood is a real pleasure.
Sensei, Mou Dame Desu