I Got a Favorability System, Starting with the OL Next Door

[Shinichi Sato, a high school student in parallel-world Japan, unexpectedly obtained a Favorability System. From then on, he began a life with cheat-like advantages.] All of the above was Shinichi Sato's fantasy. But the truth was… Hey, wait, that's not right! It was supposed to be a Favorability System, so why does it keep giving me divine artifacts? And another thing, ninja and onmyoji, stop trying to drag a mere high school student like me into this! Staring at the keepsake that had suddenly appeared in his hand, a token leading to the divine realm, and at the hordes of ninja hunting him down, Shinichi Sato thought in despair.