Wolka is an adventurer who has been reincarnated from Japan. While he is exploring a dungeon, he and his party are ambushed by an immensely powerful monster. To safeguard his companions, Wolka endures severe injuries and is brought to the edge of death.

At that critical moment, he finally grasps the reality: This world is the dark fantasy manga he read in his previous life—and he is merely a background character, destined to perish alongside the rest of the party.

Loathing bad endings above all else, Wolka is unwilling to accept his fate. Fueled by sheer desperation, he battles with all his strength and, against all expectations, astonishingly defeats the monster. Even though he sacrifices one eye and one leg during the confrontation, Wolka feels a sense of relief for having altered the “party annihilation” conclusion that was meant for him.

However, his challenges are far from finished.

Following that event, the girls in his party start to change.
Their glances become unbearably intense.
Their words turn increasingly perilous.

“I’ll protect you this time, so please don’t leave me...”
“I’ll always stay by your side, senior—okay?”
“I’ve already decided... if it’s for your sake, I’m ready to die.”

This is an isekai narrative about a reincarnator who believes in absolute happy endings—and the girls who possess overwhelmingly obsessive feelings for him. A darkly emotional otherworld story themed around 【Emotional Descent】, where the survival he fought so hard to attain becomes the very inception of emotional darkness.