The correct answer is: He causes Amaterasu to take away the sun.
In Japanese mythology, Amaterasu, the goddess of the sun is one of the creations of the divine couple Izanagi and Izanami, along with Tsukyomi, the god of the moon and Susanoo, the god of storms and the sea.
Susanoo is said to have offended Amaterasu, causing Izanagi to expel him from heaven. Before leaving, Susanoo went to bid farewell to his sister, who doubted his intentions. To prove his sincerity, Susanoo proposed a challenge in which they both took an object belonging to the other and from it, birthed deities.
Susanoo lost the challenge since his sword only produced three men while Amaterasu's necklace created five women.
After his defeat, he went on a rampage destroying much of the heavenly and earthly realm, Amaterasu's rice fields and killing one of her attendants in a fit of rag.
Amaterasu, grieving and enfuriated, hid in a cave, plunging the earth into darkness and chaos.
