Today's Lucky Item Is An Ahjusshi summary:

Moon Geunyoung has the worst luck imaginable, relying entirely on fortune apps to navigate life. His world takes an unexpected turn when he meets Team Leader Kang Joonsuk, a man blessed with incredible luck. Every time Geunyoung tries to get intimate, strange interruptions seem to arise. However, with Joonsuk, he finds himself having surprisingly enjoyable nights... that is, until he learns.... "Who knew he was married?