I Matched With Our Company President -Dating For Marriage Is Sweet And Serious-

Hina, a secretary, can't forget her one-sided crush since high school, and hasn't seen him even once since then. After signing up for a dating app recommended by her friend, she decides to check it out after she realizes she hadn't logged in a single time. However, she makes an accidental swipe and matches with someone! Not only that, it was her crush, Shinji Ichinomiya!! And on top of that, he's the new CEO of her company!? Since they have their positions to think of, she shrugs it off as just a coincidence and doesn't think much of it. However, he slowly closes the gap with her, with the unbelievable real intention of marrying her!

(Source: MangaPlaza)