The Lazy Demon King Definitely Won’t Meet the Retired Sword Saint

Transmigration is a very happy thing.
Becoming a Demon King is an even happier thing.
When two happy things come together, even becoming a girl should no longer be unacceptable—it should have been like this.
Leticia thought she would be like her transmigrator predecessors, defeating everyone under heaven and opening a grand crystal palace.
However, she encountered her lifelong nemesis, humanity’s Sword Saint.
“How can there be such a pe*verted person! Are you even going to let people live!”
Having her confidence dealt a devastating blow, Leticia shut herself away and ran to the human world to start slacking off.
But why is the Sword Saint here too?