I'm a Guardian for a Hero Party in Another World!

"As long as you're alive, that's all that matters." With those words as her last memory, she was transported by the power of the party led by the hero to a world far removed from Earth—across the vast expanse of time and space where the Demon King once roamed. She—Hasumi Yuri, an ordinary girl from Earth—strives desperately to simply survive in the world she was cast into. And there, she encounters countless people. Carrying in her heart the memories of those she would eventually meet again—the "Hero," the "Great Sage," the "Heavenly Dragon Princess," and the "Vampire Princess"—she lives through the world's past, sometimes without realizing it, sometimes with questions in her mind.