"I got a girlfriend."
Airi has been married to her husband, Eita, for a year, but is astonished to hear his sudden proclamation that he has been cheating. Thinking that their married life was hunky-dory, Airi falls apart. While going through her despair, Airi meets a skillful president named Rei Naruse at a cooking class. As a man who doesn't mince words, Naruse is set to help guide Airi to get her life back on track!
(Source: MangaPlaza)
— Description from AniList community (anilist.co).