The Witch Trials Begin with the Estate Owner

Awakening in a sealed coffin, Sieg finds himself in a mansion that should be unfamiliar, yet fills him with deja vu.

Strange people, strange surroundings, a strange world... Yet a certain white jellyfish tells him that he once lived here for quite a long time. There's even a talking owl that calls him "master of the mansion".

He's lost a part of his memory, and seems to have some unclear connection to the legendary Great Witch... To recover his past, he has no choice but to get caught up in a witch trial that feels like child's play.

"Just watch from the sidelines. Let's get this over with!"

Witch Factors drive witches mad, and any relationship with them is destined to end in ruin. The suicidal antics of a certain little mushroom of destruction convinced him of that.

But... thirteen girls, each with a distinct personality, have somehow become entangled with him. The apprentice witches grow ever more attached to him. Though he meant to stay out of it, he gets drawn in deeper and deeper.

And through the little moments they share, he keenly senses that his lost past is not so simple. The details piece together a shattered truth, and the Great Witch behind it all seems to be a friend, not a foe...

...Until at last, Sieg can no longer ignore these bonds as they grow ever stronger. No matter what, after witnessing more than enough sorrow, he will bring this tragedy called the witch trial to its close!