If you're looking for manga similar to Junai Romantica (Light Novel), you might like these titles.
Hatsumi Narita lives in a typical company housing complex with her seemingly typical family, but the dramatic turn her life is about to take is anything but, well, typical. Her precocious younger sister Akane is way too popular with boys, her childhood friend Azusa, now a hunky male model, might want to ruin her life, her super-mean and very privileged neighbor Ryoki considers her his slave, and her dreamy older brother Shinogu might not be what he seems at all. What is a hapless heroine to do?
Uchiha Sasuke journeys to the Howling Wolf Village, where Itachi's eye medicine was produced.
Senior high schooler Hikaru Umino is desperately in love with his teacher, Kuniaki Shima. When he hears a rumor that Shima is engaged to be married, Hikaru does the unthinkable and forces himself on his teacher. Shima makes him atone for his sin by, unexpectedly, becoming “make-believe” lovers until Hikaru graduates high school. When the time limit expires, can Hikaru let go of his beloved teacher?