The strongest family in all worlds - Chapter 20: Genius Two Family

In a world teeming with Titans, Colossals, Gigantic Monsters and Kaiju's, Erian who reincarnated makes his living collecting scraps of low-grade Defective Genetic Serum, realised he transmigrated along with his system.

Follow Erian as he grows to become the strongest Disaster Grade Titan with the help of his Titan System!

After an unexpected death, a soul finds itself reincarnated into the body of Itsuka Shido, an ordinary teenager in a world filled with powerful spirits, magic, and dangers from other dimensions. With the help of a mysterious system integrated into his body, Shido gains the ability to travel across worlds, summon legendary anime characters, and unlock a wide array of random skills and abilities.Disclaimer: The cover isn't mine, credits to the original artist.

One Hero Is Not Enough To Save The World.

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Amael, the hero, singlehandedly wiped out more than half of the entire demon race all on his own and even won against the demon king. This should have put him at ease but unfortunately for the human race, the demon king and his race were fated to come back to life again after thousands of years, just like it's always been.

“You may have won this time Amael, but the next time, there'll be no one as powerful enough as you to save this world” the demon king cackled with a malicious laughter as he faded away.

“This is only a temporary peace...”

“Very well then... If this is what I must do to completely eradicate them, then I will”

Amael then made a decision. A decision he had hoped would ensure the safety of the future for generations to come.

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“We were supposed to be dead, but when we both woke up, we found ourselves in this new world... a world that was all too familiar to both of us”

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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