Isekai Shikkaku

Just as the famous writer Sensei is about to accomplish his life ambition and commit double suicide with his lover Sacchan, he is hit by a truck and transported to another world. Deemed an adventurer by the local priestess Annette, Sensei is given the daunting mission of slaying the demon king. Refusing to play into his new role, Sensei decides his efforts are better served looking for Sacchan in the hope that she is somewhere in this new world.