Sekai Ichi Hatsukoi - World's Greatest First Love 2

Because Ritsu Onodera hates to rely on family connections he quits a job as a literature editor at his parents' company, Onodera Publishing, and winds up taking a job at Marukawa Books. To his chagrin, he is assigned to the shōjo manga department in spite of having no interest or experience in it. And on top of that, he has an awful first impression of his high-handed editor-in-chief, Masamune Takano. What comes after is a story of first love full of tears and laughter.

Synopsis from Anime News Network