Serena Eustania is known online as the strict moderator of the nation's largest swordsmanship forum.

Offline, she's a quiet, sickly girl who would rather spend her days avoiding attention.

Few people know she was once the greatest Sword Saint of another world—a veteran who survived years of war only to lose nearly everyone she fought beside. Even after reincarnating, the memories never truly faded.

But peace has a habit of attracting trouble. Between an overprotective family, aspiring swordsmen seeking her guidance, and old enemies refusing to stay buried, Serena's quiet retirement keeps turning into anything but.