Published: Feb 15, 2024

My ninety-ninth caption, featuring a thirsty Oni. We're nearly to my 100th caption, so keep your eyes open for it!

An unlucky sorcerer, trying to summon and Oni to bind to himself as his familiar, is forced to become a vessel for said Oni when the ritual fails, causing the Oni's spirit to fly to the nearest living person: him.

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All image credits go to their respective artists. I have and never will claim ownership over any image I've used or modified for a caption, and I always encourage you to check out the artist and their wider body of work when possible.

“Aaaaaaannnddd… that’s another one… down the drain. Hehehehe…” The Oni chuckled to herself, slamming down the sake cup. She was well on her way to becoming completely wasted, having downed way more than my body could have possibly handled before. “You’ve been… pretty quiet in there, huh?”

“What do you want me to say? You’ve already transformed my body to your liking. Do you want me to beg for it back, just to amuse you?” I “spoke” to her, my own mind having been trapped within the recesses of my brain during the possession. “Besides, I’ll just regain control if you lose consciousness later…”

”I… heard that!” She said out loud to herself, the owner of the restaurant walking over and refilling the cup without a word. “Thaaaaannnkiessss, sir! hic”

One hour ago, I had been studying some old scrolls involving the summoning of ancient beasts and the ritual of binding one of them to yourself, creating your own powerful familiar in the process. Having a fair bit of knowledge already when it came to summoning, you decided to try your luck with something a bit… beefier. An Oni, something still considered to be quite terrifying to this very day. You knew if you could bind an Oni to yourself, you’d be set.

At first, everything went perfectly well, setting up the desired scrolls and your spell circle. After lighting your candles, you began the ritual, filling your workshop with a sharp, red glow. You could smell brimstone and feel what felt almost like a furnace as the summoning began. As the portal opened, a shadowed figure began to slither out, but just as they made it part-way, the cup of water on my nearby workbench was blown over by the wind, spilling directly onto one of the scrolls and part of the spell circle. Suddenly, there was a bright flash as I was thrown backwards into my bookshelf, causing several to fall down onto me. The circle and the affected scroll were now smoldering, and I didn’t have any time to react before my entire body pulsed in pain.

My body began rapidly changing, much to my immense shock. My once-average frame rapidly swelled, becoming more toned, muscular, and a bit taller before more… feminine changes began. My arms, legs and hands, though retaining some muscle, became more dainty, and my hips and rear gained several sizes, pushing me up off of the floor slightly. I didn’t have to feel my crotch to know what had happened to my manhood, feeling it invert back inside of me, forming two moist lips. Hair exploded from my scalp, styling part of itself into a ponytail as two bumps formed behind my nipples, quickly forming what must have been two C, or possibly D-cups. Finally, two red horns shot painfully out of my scalp as my ears took on a more… unique, pointed shape.

As my clothes reformed themselves into a robe similar to my old one, I felt a new… presence make itself known inside my own mind. I was quickly pushed into the backseat as the louder, boisterous attitude overwhelmed my own, and it didn’t take very long for me to figure out exactly what it was.

“…Ah…that’s much better.” The new personality spoke, shaking herself out slightly as she stood up, completely in control of my own body. She stretched out her arms and legs for a moment before looking down at the ruined scroll and spell circle on the floor. “Wow, you sure messed up, huh? That sucks!”

“What is going on?! Who are you? What are you?” I “said” from the back of my own mind, somewhat surprising her. “What have you done to my body?”

“You tried to close the portal on me! I had to go somewhere!” She explained as if it was common knowledge, crossing her arms. “I’m Naru, by the way.~”

“OK, uh… this is insane.” I commented, trying to focus my thoughts. “So, you’re using my body as a vessel, correct? That means this can be reversed!”

“Nah! I just got here, and I don’t get to visit this realm very often anymore!” She ignored me, walking out of my workshop into the kitchen instead. “Where do you keep the sake around here? I’m dying for a drink, and I’m not going to listen to another word you have to say until I’ve had some fun of my own!”

You were going to try arguing with her, but then you remembered reading about this kind of scenario in the scrolls: if your body is overtaken by another spirit, you will regain control if they happen to lose consciousness, either through sleep, being knocked out, or inebriated to black-out drunk levels.

“I don’t keep sake in my house, but there’s a restaurant down the street that sells it.” You immediately began to cooperate, knowing you could use her desire for alcohol against her. “If you agree to help fix this situation later, I’ll tell you where I keep my coin. Wouldn’t want to make a scene, right?”

“Fine, I’ll help you out later. But you better be telling the truth about those drinks.” She reluctantly agreed, finding said coins and leaving my house.

Forty-five minutes later, she had already become quite tipsy, even with the enhanced resistance our modified form afforded her. Unfortunately, this also seemed to be affecting her inhibitions, and at the worst possible time too. My old friend Komatsu walked into the restaurant, and I immediately knew I was in deep, trouble. I could already sense Naru found him quite attractive, and knowing how impulsive Oni could be when it came to things they wanted-

“Heeeeeey there, handsome!” She immediately slurred, nearly falling out of the chair as Komatsu looked over in confusion. “You look pretty lonely! hic”

I knew Komatsu was already a pretty prolific womanizer around town, and I became extremely fearful of what was about to happen next.

“No, don’t you dare! I know what you’re thinking, don’t!” I yelled from inside my own head, but I already knew she wasn’t going to listen to me anyways.

It didn’t take long for the “two” of them to end up back at his house, where he plied her with more sake before she practically dragged him into his own bedroom. I was forced to watch for several hours as she effortlessly “mounted” my friend, treating him like her own personal playtoy. By the time the two were finished, Komatsu was out cold, while somehow Naru was still awake, raiding his cabinets for even more sake to drink herself into a stupor with…