Athena (Nintendo Cinematic Universe)

Athena is a Japanese graphic novel.

Summary
When Athena opens a forbidden door, she accidentally unleashes a great evil that she must defeat.

Plot Elements

 * Bored of the monotonous daily life in the palace and desiring exciting adventures, Athena opens the "Door Which Shouldn't Be Opened" in the basement of Castle Victory, said to lead to a savage and deadly place.
 * As Athena dares cross the doorway, it causes her to fall from the skies and to another realm called Fantasy World, which is dominated by the evil Emperor Dante.
 * After her flowing dress is lost while catching the wind for her fall, the perilous adventures of Princess Athena begin as she lands in a wilderness overrun by beast-like warriors and more dangers than she could ever wish for.
 * Athena readies to fight for her life and arms herself, with no other choice than to face the ruthless Dante and every obstacle on her way, to free this kingdom and make it back alive to her own.
 * Athena defeats Dante and returns home to the Kingdom of Victory.