Currently there are Three Season in Junjou Romantica.
Romantica: Misaki is struggling to prepare for his college entrance exams, so his brother arranges for a private tutor (who is also his best friend since high school). But Misaki's nightmare is just beginning when his tutor, Usami, comes on to him! How will Misaki ever manage to pass his exam? And why does he feel so mysteriously drawn to Usami?
Egoist: Just when Kamijou's life is at its lowest, he has a chance meeting with a man who never lets anything hold him back: Nowaki. His name means "typhoon," and he's about to take Kamijou on a whirlwind ride that will turn everything upside-down.
Terrorist: Miyagi always seems to shrug off the cares of the world with a joke and a smile, but even he has problems, although he doesn't let them show. Foremost is Shinobu, a relentless young man who's adamant that they're destined to be together.
Three intertwining love stories threaten to unravel as each couple struggles to find its own path.
Romantica: College student Misaki and his unlikely lover, the eccentric novelist Usami, are slowly growing closer - but their relationship could be in trouble when Usami's older brother appears and the two begin to vie for Misaki's attention!
Egoist: Nowaki loves Hiroki with all his heart, but sometimes he's afraid Hiroki doesn't feel the same way. When Nowaki asks Hiroki for permission to address him by his real name, as others do, Hiroki flatly refuses. To Nowaki, this is just another reminder of the invisible gap that separates them... a gap that he must close, if they're ever going to truly be a couple.
Terrorist: Miyagi is growing anxious. Shinobu used to be relentless in his devotion, but recently the relationship has gone quiet. As a 35-year-old university professor, is Miyagi really content with living at the mercy of a younger man whose actions are still such a mystery?
The third part of Junjou Romantica continuing the story.