B-D, or "Boys' Love" (BL), is a genre of fiction that focuses on romantic relationships between male characters. Originating in Japan, it encompasses various media, including manga, anime, and novels. The genre often explores themes of love, friendship, and emotional connection, appealing to a diverse audience. The B-D genre has gained popularity worldwide, leading to a growing community of fans and creators. It often features a range of character archetypes and storylines, from lighthearted romances to more dramatic narratives. Notable works in this genre include Yaoi and Shounen Ai, which cater to different aspects of male-male relationships.