This is really not mechanical ascension - Chapter 4 - 【Pneumatic Pressurization】and Tenglong Reagent

Five years after being kidnapped and ens*aved in a city full of Witches, I became the only male Witch in the world!

[You have awakened the ‘Heroine Netori’ ability.][Try to eat the heroines.]

Akira Kitagawa, a quiet and unremarkable second-year high school student, has come to accept his lonely, mundane life after losing his parents in a tragic accident. No friends, no excitement—just peaceful monotony.Until one day… a girl literally falls from the sky.Sera Rymer, a fiery and seductive mage from a world of magic, crashes into his life—naked, powerful, and completely confused. Bound by an ancient pact of Master and Slave, she must now live under Akira's roof, turning his boring world into a whirlwind of magical chaos, awkward steam-filled encounters, and otherworldly drama.From laundry mishaps involving spells to battling demonic pursuers from Sera's realm, Akira's once dull life is now anything but ordinary. But as their bond deepens, secrets unravel—and the “God” behind it all might have very different plans.Can a lonely boy and a wild mage girl find meaning—and maybe even love—in the absurdity of it all?Tagline:When magic crashes into your mundane life, expect steam, spells, and soul-binding surprises.Tags:Romantic Comedy, Fantasy, High School, Ecchi, Magic, Isekai Girl, Master-Servant Pact, Slice of Chaos, Slow Burn Romance, Fanservice, Opposites Attract, Everyday Magic, Harem (Optional), Steamy Situations, Lighthearted Drama, Tsundere Heroine

The Celestial War!A war that has been ongoing since time!Pyrrhus, the human god isn't left out. He's known for his might and greediness, conquering many stars and sectors!Kyle Lin, a boy of Zekkoa becomes the recepient of a system; one which Pyrrhus has sent as a help. Forced to reincarnate into a magic world, he must grow stronger as the world is at stake.Kyle must free himself of being a pawn and take power into his own hands. Witness his journey to become an Omni Mage!