Zenitsu Is Here to Give You a Gua Sha Massage

Zenitsu survived the battle at the Infinity Castle. After everything he'd been through, he had become mature and steady, until he fell into another world.

This world was full of wonders, with all sorts of new things that hadn't existed in his era, including Conan science.

To adapt, Zenitsu opened a detective agency, hoping to fit in. All he wanted was to lie flat in this world and find a way home. Just as he had finally gotten used to people dying every now and then, he discovered a fatal problem...

Muzan is the boss of a liquor company.

Zenitsu: lying flat, ing

But he refused to give up, so he infiltrated the liquor company and used nothing but his Nichirin Sword to turn every true and fake member against the boss.

And so, after all his hard work, he kicked Muzan out and took over.

Tanjiro: ???, ing

Muzan: smiling bitterly, ing

Theme: For the sake of a happy ending.