"Shounen-ai" is a genre of Japanese media that focuses on romantic or emotional relationships between male characters. It typically depicts non-explicit romantic or emotional bonds between male protagonists. The term "shounen-ai" translates to "boy love" in English.
Some popular Shounen Ai comic works at website Book Manga
What if your sworn enemy holds the key to your future? Theo Peserus: an alpha of the mighty Peserus clan, called forth to provide the clan with a child. For a tree to bear fruit, a worthy Capri must be chosen to inseminate him. Seram Marita: a revolutionary army soldier hailing from the Langeres clan. Having escaped from his imprisonment, he now weaves through the maze-like halls of the Peserus castle, looking for a way out. But a tempting odor permeates the air and leads Seram straight to the enemy. Intoxicated on pheromones, the two adversaries are now engaged, not in a battle for their lives, but in a war of lust… What fruit will come to bear when these foes, this Smyrna and this Capri, become entangled in a decadence that they both cannot resist…?
Jeong Taeui has always lived in the shadow of his genius twin brother, but he’s never been unhappy with his ordinary life. When his uncle shows up at his doorstep with a dangerous job offer disguised as a once-in-a-lifetime opportunity, Taeui is skeptical, but he reluctantly agrees to work as an agent for half a year. Despite his initial qualms, he quickly adjusts to his new environment using his outgoing, positive personality. But from the moment Taeui meets Ilay Riegrow, an agent from another branch, his peaceful life slowly starts to change. Everyone says Ilay is a sadistic psychopath who should be avoided at all costs, but Taeui knows there’s more to him than meets the eye. But getting to know Ilay is like playing with fire, and Taeui isn’t sure if he’s ready to get burned.