Koi wo Suru nara Nidome ga Joutou

Business editor Akihiro Miyata asks successful professor Takashi Iwanaga to write a column for his magazine. When they meet, Miyata realizes Iwanaga was his first love in high school—under a different last name. Iwanaga is excited to reconnect, but Miyata isn't thrilled; he cut ties with Iwanaga back then and has tried to move on. Juggling his busy life and a girlfriend, Miyata's world starts to fall apart as he has to work with Iwanaga. Can they move past the past and start fresh?

(Source: MyDramaList)