MARRIAGE TOXIN GN (2025)

Hikaru Gero is an assassin from a centuries-old clan of poison masters. Considering his less-than-honest occupation and complete lack of experience with women, he's never considered himself marriage material-that is, until the family orders his sister to produce the poison clan's next heir in his place. That's when Gero comes across his next target, Mei Kinosaki, a marriage swindler! Refusing to let his sister abandon her own chance at true love with her girlfriend, Gero enlists Kinosaki's services in matchmaking. Does Kinosaki have what it takes to turn this trained killer into a charming husband-to-be?

After assessing Gero's romantic qualities (or lack thereof), Kinosaki decides the best strategy to find Gero a wife is to use his impressive talents as an assassin instead! Together they respond to a job listing to rescue Himekawa, an art thief who's been taken hostage-but with a water master now standing in their way, their plan takes a turn for the worse! Can Gero win this fierce battle of poison versus water and take his first step toward marital bliss?

After Kinosaki sets Gero up as bodyguard for Shiori Ureshino-the daughter of a high-profile CEO-Gero's assassin skills are pushed to the limit as he tries to prevent Sound Master Naruko from turning Ureshino's university camping trip into an all-out horror show!

Not long after accepting his latest assignment to protect Hamster Master Arashiyama, Gero is struck by a surprise attack from the deadly Hit Man Hunter! To make matters worse, Arashiyama's life is threatened by the head of the Beast Clan. Now, to have any hope of keeping her safe, Gero must risk venturing into the very heart of this rival clan's territory... For older teen audiences.

"Gero swore to protect Hamster Master Arashiyama, but she's been kidnapped by the Beast Master! Now, Gero must team up with none other than Piichi the Hit Man Hunter to help rescue her. But the Beast Master is two steps ahead-have they been playing into his hands the whole time? And what does the unexpected return of Ushio the Water Master mean for Gero?! Includes the bonus one-shot "Hyper Hard Special Mission," an exciting prequel story featuring Piichi and his girlfriend, Marin!"

The epic battle between Toshiro Dogo and Gero is finally reaching a climax! Though Gero has unlocked his ability to unleash one of the Poison Clan's most powerful techniques, this fight is quickly becoming the fiercest he's ever faced. But Arashiyama is still trapped by the Beast Master, and now there's an unsettling figure closing in on them... Does Gero have what it takes to beat Toshiro Dogo and save the day?!

It's Poison Master versus Poison Master as Gero is forced to face off against his own cousin, Teruaki! After learning about Gero's frivolous marriage plans, Teruaki targets Kinosaki in order to help Gero regain his focus as heir to the Poison Clan. But Teruaki's tolerance to poison may be even higher than Gero's own. Can he stop Teruaki and save Kinosaki before it's too late?!

Gero may be a master assassin, but he's not exactly killing it in the romance department! Can marriage swindler Kinosaki help him find true love? Poison Master Hikaru Gero is about to take on his most challenging assignment yet-getting married! Gero couldn't be more clueless when it comes to dating, but thankfully, marriage swindler Mei Kinosaki knows everything there is to know about love. Together, this unlikely pair is going to do whatever it takes to get Gero hitched-even if they have to take on the entire criminal underworld in the process! Kinosaki signs Gero up as a driver for underworld bodyguard Chinatsu Akakura, but this job is no Sunday drive! With an entire clan of pinwheel masters on their tail, Gero will have to help Akakura protect her charge Erina Zao at all costs-and if Gero wants to win Akakura's heart in the process, he may be out of luck unless he can win over Zao first...

Thanks to the help of Sound Master Naruko, Gero is fully recovered and ready to rescue Himi from a wedding from hell! But Ghost Master Sakazuki lies in wait, with plenty of tricks up his sleeve. And even if Gero manages to save Himi, will he ever realize her true feelings for him? For older teen audiences.