Higanbana no Saku Yoru ni - Dai Ichi Ya

As a reserved and unassuming university student in snow-bitten Hokkaido, the personal tragedy which visited Honoka Asakawa would lead to her experimentation in a magical art thought long-lost — blood magic. Unexpectedly able to visit the sealed world of Meiji-era Sapporo, Honoka's quickly taken under the wing of the cheerful and bright Lady Yasue, a powerful mage who's remained in this gilded cage for a century.
 
As their feelings for each other develop, the true repercussions of Honoka's first steps into the secret world of magic and mages are only just starting to play out, eventually leading to catastrophic consequences.

In a future over one hundred years hence...

All the people in the world have awakened to unique abilities called 'Dunamis'. As these special powers become rooted in people's everyday lives, their value system changes, and those who lack powers are the ones who are treated as strange. With the passing of the ages, the environment has changed completely, while society has greatly regressed. The overall population of mankind has diminished as well, and most of the world is made up of wastelands and greenery dotted with the weathered ruins of the world before.

The City of Raillore.

With brickwork buildings like those of the Middle Ages, developed over land graced with lush greenery and rivers. With the concept of nations gone from the world, Raillore exists as something of a self-sufficient commune. The Order of Security and Regulatory Knights - AKA the Regulatory Corps - serves as a government organization in charge of handling crime prevention and other tasks that require force of arms.

But things begin to change as odd incidents take place, one after another...

Those possessing abilities different from those of Dunamis begin to appear. The people fear this power and the phenomena it causes, and those capable of it are designated as ‘Errors’. The sudden appearance of these Errors is regarded as a disease, and the handling of Errors is placed under the jurisdiction of the Regulatory Corps. As people tremble in fear of the vicissitudes of the changing times, there are those who try to open a way to the future with their own strength...
 

When Dr.Ben Johnson and his wife Dr.Claire heard about the mysterious Moonflower and its amazing healing properties, they wasted no time heading to an island in the middle of the Pacific to hunt for the fabled plant.

What they didn’t expect to find there was the Aimumu, an ancestral tribe who had been watching over the island for centuries and guarded the secrets of the Moonflower from the hands of outsiders. To complete his ambitious research and make a name for himself in the halls of science, Dr Ben will need to earn the tribe’s trust.

I became the mayor after my father passed away. As the unlikable ‘Magic Trash,’ I used high-level props and awakened the magic circle! Unexpectedly, a frightened girl in her tattered clothes—Liz had appeared... No way, no! Did my guardian beast just get blocked by a girl like that?

As a demon under my control, Liz always looked arrogant as she kept competing against me. There must be one who wins and one who loses, even if it is by doing naughty things. But sometimes... she would also smile gently and speak of her loneliness, just like... the harshness was her defense so that no one could enter her heart.

As the thorns enveloping her sprouted new shoots, the city became more and more prosperous, but strange things also emerged bit by bit. The [Withering Flower] curse was gnawing her soul and somehow also affected me!

This is a Story of "Love"
One day, Hitomi Tadehara, the best friend of Ichika Shinonome, committed suicide right before her eyes.
"I'm sorry for hurting you so much, Ichika-chan."
"If I could start over with you, I'd like to have a normal romance this time."
Though Hitomi should have taken her own life, one day she naturally reappeared in front of Ichika.
From that day on, Ichika began to be consumed by Hitomi's twisted affection.
Classmates who interfered with Ichika's love were killed by Hitomi, and Ichika herself was gradually tainted by Hitomi's warped desires.
Can Ichika accept Hitomi's love?