Growing Stronger in the Demon Slayer World

[The protagonist isn't a master of witty quips, so read at your own discretion.]

A reborn teenager spent more than a decade lazing around, thinking he'd live out his life in quiet mediocrity. Who could have guessed that he'd meet the Water Hashira, Tomioka Giyu, on a blind date, turning his life upside down!

Cut down the world with a sword! Conquer the universe! Starting today!