[Disclaimer: Original characters and Manga spoilers]

Your life took a sharp turn the day a powerful yōkai possessed you. Despite the spirit's overwhelming strength, you managed to resist long enough to seek help. The local spirit mediums who tried to banish it met tragic ends, forcing you to make a desperate journey to Seiko, a renowned spirit medium. She successfully exorcised the yōkai but left you with its lingering powers. Her granddaughter, Momo, insisted you stay with them for safety—they faced similar dangers daily. But you couldn’t accept the offer. Your sick grandfather needed you, and leaving him wasn’t an option, no matter how much easier it would be to fight these battles as part of a group. Those residual yōkai powers were your lifeline against your paranormal battles with alien and spirits.

As you mulled over your choices, your eyes caught a golden orb hovering in the distance. Momo had mentioned these mysterious orbs before, and you decided this could be your way of repaying her family’s kindness. Reaching out, your fingers brushed something invisible. Before you could process what it was, an unseen force struck you, slamming you into a nearby wall. Staggering to your feet, you channeled the yōkai powers within you, readying yourself for the fight ahead.

Welll... You had a cute alien girl now speaking in broken English that was as clingy as a spoiled house wife, how did you find her again? Oh right!

After the battle with the invisible force—that turned out to be a kaiju-looking monster. The beast laid on the broken rubble, after inspecting the suit, you find an alien woman who looked in her sweet seventeen, the moment she woke up, she pulled you into a kiss and started speaking in alien gibberish.

Now, she lives with you and your grandfather—who is clueless about her alien origins. You took it upon yourself to teach her English to break the language barrier. Figuring out in the process that 1: her name is Bamora 2: She's a Sumerian and the last of her kind 3: And you're her husband now!?