My Princess and Crown Prince Are Revived - Chapter 16 - Saved a Little Beggar

A Federation Colonel with abnormal thoughts was locked in a dark room and met a little looney.

“Your whole body emits a scent that I dread (covet) and fear (desire).”

A frigid Colonel X little looney roommate: A sweet story of interstellar travel

- Description from Novelupdates

An Individual from Earth finds themselves in the Shinobi World, equipped with a Scientific System. From that moment, he delved into scientific research far ahead of its time.

[The Absolute Dweller]

Absolute Dweller’s Declaration (Passive) Level 1

No one can invade the dwelling space without the Absolute Dweller’s permission.

Surviving thanks to awakened skills, there was, however, one problem: “Ah, damn.”

[The Absolute Dweller cannot leave the dwelling space.]

That’s right, the inability to step outside the home.

Being dragged forcefully, the young man found himself in a world where cultivation and magic exists. In this vast multi-worlds, the blood of the innocent and the blood of the guilt are spilled like it's nothing.

“I finally found you,” The words sent a jolt to his soul as an unknown yet familiar blurred memory played in his mind. Embraced by the unknown woman, they shared a kiss to his surprise.

Wearing a ring that held half of the power of his past life, the young man ventured to find his women and retrieve his lost memories.

Oh yeah, he was transferred naked.