What happens when a professional killer's survival hinges on finding a wife? The high-stakes romantic comedy of the Marriage Toxin manga English edition explores this very premise, delivering a unique blend of dark humor and unexpected affection. Gero, a hardened hitman from a centuries-old clan, faces an unthinkable ultimatum: marry and produce an heir, or his innocent younger sister will be forced into the clan's 'business.' Driven to desperation, he enlists the target of his last assignment, a cunning marriage swindler, for help. Launched in 2022 by author Joumyaku, this unconventional shounen series deftly merges deadly assignments with the chaotic pursuit of love. To read online, fans can often find chapters available, sometimes even as free manga, across various platforms. This hitman romance offers an intriguing dark comedy manga experience that keeps readers guessing. Further details can be explored on its MangaDex page (https://mangadex.org/title/f4397b12-137c-426f-92ff-618ddbad51a) or through community discussions on MyAnimeList (https://myanimelist.net/manga/146211/Marriage_Toxin) and AniList (https://anilist.co/manga/147329). Discover if this unlikely pair can survive their matrimonial mission.