One Day, the Male Lead Fell Into Our House

"My name is Leandros Julian Terion Etosina." I was just an ordinary college student. Then one day, a man suddenly appeared from another world. I thought we could never be together— that our worlds would never meet. But in just a few days, love blossomed between us... "Cry as much as you want. I'll hold you close..." "I will never forget you, my lady." But a few days later, he vanished as suddenly as he had first appeared— Back to the place where he truly belonged, into a 1,000-page romance novel... "You're as pure as ever." There, in that world, ten years had passed. It was a world where the man I once knew -no longer the Leandros I remembered-now lived as the head of a great ducal house.