Transferred in another world as a hero, but in the end I chose to return to my world and become a novelist.

Kyoshi Isei was a failed writer until he was summoned to another world as a Hero. There, he unraveled the true darkness lurking beneath a land consumed by chaos. At the end of his journey, believing his mission complete, he discovered a bitter truth: the Demon Lord—a girl named Liuva—was merely a scapegoat in the endless war between humans and demons. Driven by a choice that would redefine his life, Kyoshi rescued Liuva and fled back to his own world. Over time, an impossible bond grew between them—a love story that, by all laws of both worlds, should never have existed. But their story doesn't end with a quiet life. One day, Liuva stumbles upon Kyoshi’s old, discarded manuscripts. Stunned by his talent, she urges him to chronicle the adventures they lived through. Skeptical but swayed by her belief in him, Kyoshi decides to give a long-forgotten passion one last chance.