Says end of season 1, but from what I can find the series is complete. On Lezhin (in Korean) 41 is marked as the last episode, and it's marked as complete on MangaUpdates. Maybe a second season was planned but never started, and they decided to end it. Feels incomplete.
Not licensed in English.
Series info: https://www.mangaupdates.com/series/mnb63cj/love-in-the-underworld
4/8/23
Love in the Underworld