There is a special B L comic school in the comic industry. Its protagonist is generally a handsome man, and its content is mainly

Love feelings between men that do not involve reproduction.

BG means "Boy&; Girls ",BG cartoons refer to the cartoons of men and women in love, as opposed to BL (boys love boys) and GL (girls love girls).

Generally speaking, this mostly refers to this. There are other situations, and let's analyze them in detail.