In serial romance and manga/webtoon collections like the Dark Daddies or Alpha Mafia Daddies series, Volume 6 typically serves as a peak for established tropes:
The story may revolve around a lovable and perhaps imperfect father figure, navigating the ups and downs of parenthood. Along the way, they may encounter a range of emotions, from the struggles of responsibility to the joys of unconditional love. My First Daddy Vol. 6