Ryuu Kusari no Ori -Kokoro no Uchi no “Kokoro”- - Side Story - Ever-Changing Iris-chan

The crumbling Vienna System is unable to stop the rise of the Second Empire, as the Emperor's nephew is about to visit his faithful Paris.Protector of the Apennine, Honorary Chairman of the Rhine Federation, Close Ally of the Kingdom of Spain, French Empire Augustus Jerome Bonaparte:I will make France great again!--------------------(Reasonable historical deduction party, Paradox Interactive game players rejoice!)

Every hero starts with power. He started with dust.One moment, the classroom buzzed with teenage chatter. The next, silence fell. Students blinked—and opened their eyes in an ancient hall carved from gold and marble. The air shimmered with divine magic. And at its center stood a goddess—flawless, proud, unbelievably beautiful and wrapped in flowing white.It was a divine summoning performed by a divine goddess.Among them was Vritra… and his stunningly beautiful mother.While others received blessings, powerful physiques and grand titles, Vritra was given a skill so pathetic it made even the goddess wrinkle her nose. An ability—so pitifully weak that it drew laughter, scorn, and even disgust. But that wasn't the worst part.Betrayed and cornered inside the labyrinth, Vritra had two choices: die… or fall into the death trap.A death canopy with no exit and no chance of survival, the only option was to slaughter the demons endlessly for months.Finally!! He forced his dormant skill to awaken, after killing thousands and hundreds of thousands demons and devouring them, becoming a broken ability.******White robes. Cold arroganceA sinful revenge.White robes can stain. And in the dark, even divinity can moan.And then there was his mo— guilt in her breath, shame in her eyes, whispering apologies between gasps in her son's ear, doing what had to be done… for both their sakes.

“What does it feel like to be a shadow?”People say it's bondage — the absence of light, of freedom. But what is freedom, really?The ability to choose whatever you want?Or... just a beautiful illusion masking the void?Strange question, I know.But you'll understand soon enough.Because my lives?They've always been a little... enlightening.— Kaiser

A man who was once called the world’s strongest agent ended up becoming a teacher after his retirement, to train a new generation of agents. After many years of training his disciples, he was killed at the age of 60 by a secret organization’s ruse and was reincarnated in another world with his memories intact. Though he was surprised by the existence of magic and the strange species in that world, he quickly adapted to his condition as a newborn and took advantage of it. He acquired special magic and gained a massive amount of strength thanks to his rigorous discipline, in order to reach his goal: Resume his career as a teacher which he left halfway through in his previous life. This is the story of a man, who, based on the memories and the experiences of his previous life, became a teacher who travels through the world with his students.