
Yes, does end up with his wife, Yui. They reunite in the final chapters of Hell’s Paradise: Jigokuraku.
Hell’s Paradise: Jigokuraku is a Japanese manga series written and illustrated by Yuji Kaku. The story follows ninja Gabimaru and Yamada Asaemon Sagiri, an executioner who went to a very dangerous island known as Shinsekyo to get the Elixir of life and, if they are able to, then Sentenced to death, will be uplifted.
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Source: Crunchyroll
Gabimaru and Yui’s Past

Gabimaru, known as “Gabimaru the Hollow,” was a feared and emotionless ninja from the village of Iwagakure. His life took a turn when he was arranged to marry Yui, the village chief's daughter. Despite the initial purpose of their marriage being to produce strong offspring for the village, Gabimaru and Yui developed a genuine and loving relationship. Yui’s kindness and acceptance of Gabimaru’s true self transformed him, making him yearn for a peaceful life away from his violent past.
Gabimaru Reunion with Yui

In Chapter 126 of Hell’s Paradise, Gambimaru reunited with her wife Yui after completing the bringing the Elixir of Life. After their reunion, they start a peaceful life together, leaving behind the violence and chaos of their past. A year later, Yamada Asaemon Sagiri visits them and finds them living happily, confirming their love has endured despite all the hardships.
FAQs on Gabimaru and his wife in Hell’s Paradise
A. There are 127 manga chapters in the Hell’s Paradise.
A. Yuji Kaku is the manga writer of the Hell’s Paradise series.
A. 13 episodes of Hell’s Paradise have been released.