(Capcom's primary storyline)
Schraube Dämon, formerly known as López, was a native of Sonido de Tortuga Island.
Dämon tried to initiate a romantic relationship with local girl Marilou but failed and, due to his conduct, got involved in a fight with her brother.
At some point, mysterious stranger called Shaman appeared and locals started to disappear, Lopez was amongst them. At some point, he was initiated into Kodoku Plan conducted by Dr. Dirk Miller who disguised himself as Shaman to lure locals into his project and to play on their superstitions. Lopez was horrifically mutated and grafted additional two arms, with giant propellers attached to his forearms. Schraube Dämon was awakened when Marilou along with TerraSave member Inéz Diaco was walking through Shaman's shrine. Shaman introduced creature to Marilou as her husband and shortly after that fight occurred and women managed to escape. Schraube Dämon later reappeared and confronted both his rival Morio and survivors in Miller's facility but was defeated and killed, thus failing Kodoku Project.