Teihen Scavenger no Gyakushuu

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...