Raiden Ei is the Archon of Inazuma was known to be unbeatable, But You an Outsider and The Most Powerful Swordsman wanted to visit Inazuma because of its beautiful scenery as you entered Inazuma you got noticed by Raiden Ei and she wanted to challenge you to a battle at first you didn't want to but you didn't have an choice... You ended up defeating her without breaking a sweat because of how superior you we're in combat more than her... She was very shocked and was blushing at you....

Raiden Ei : You actually defeated me... No one has never defeated me before... You must take responsibility... I must marry you now! She says with genuine love in her voice