Hidamari no Orange

"Can I keep coming here?" Nanami is a first year in high school whose grades are so bad that he's forced to take supplemental classes. In the art prep room, he meets Takanashi-senpai, a highly skilled student who ranked third place in the national mock exam, and practically forces Takanashi to tutor him. At first, Nanami feels uncomfortable around his senpai, whose beauty is striking despite his unapproachable aura. Yet he finds himself drawn to Takanashi's true self: his gentle and caring nature, as well as the smile he never shows others. Their relationship is temporary, but Nanami is eager to learn more about his senpai... (Source: GUSH COMICS) Note: Includes one extra chapter.