Attention!：All stories in this work is localized with INKR Studio.

After meeting an early death due to an incurable illness, Osamu becomes a wandering spirit (monster) in an unknown world.
Shunned by humans and facing constant threats to his "life," Osamu desperately wishes to avoid a second death.
As if responding to his plea, fate takes a turn, granting him the power of Life Absorption, which allows him to sustain himself by consuming others' life energy.
With the scientific knowledge he relentlessly studied in his previous life and his natural ingenuity, he uses creative magic to fend off the ever-present threat of death.
Along his journey, Osamu encounters an immortal girl who, like him, is tormented by her fate.
"It's their fault for trying to kill me!"
Perhaps it's easier to be a taker than a giver?
This is a tale about a spirit yearning to live, an immortal girl who just can't die, and their anti-heroic journey against the world.