Teihen Scavenger no Gyakushuu

Tatsumi Kyou, the heir of a prestigious family, is diagnosed with a terminal illness and given a grim prognosis. Determined to complete his unfinished business, he sets out to achieve an unprecedented milestone in his favorite game, Divine Fantasy Chronicle, by using ten different accounts. After finally accomplishing this feat, he falls into a coma. But when he wakes up—he finds himself inside the world of the game! Even more shocking, the friends and family he encounters bear the same names and appearances as in the real world. Which world is real?

A bizarre case of sudden death shakes the city of Tendoku. All signs point to a mysterious drug known as “Faust.” As detective Subaru Shizuhara and officer Sumire Natsuno delve deeper into the investigation, they uncover a terrifying truth: everything is part of a ritual to summon a demon into this world. But then, Sumire realizes something even more horrifying— a demon is hiding… inside Subaru.

After his sister's death, Row, who was said to be a freeloader, becomes an explorer to investigate the cause of his sister's death. When he nearly loses his life in the dungeon, he acquires the ability to disassemble monster corpses, supplies, and skills. Row becomes stronger by disassembling various things. And the mystery of his sister's death slowly begins to unravel...