Two Worlds Collide. Yu Yu Hakusho/InuYasha Crossover.

Koenma has sent his team of spirit detectives (Yusuke Urameshi, Kazuma Kuwabara, Kurama, Hiei, and Serenity,) to Feudal Era Japan in hopes that they could become allies to InuYasha and his group and help him bring down Naraku before he teams up with an A-Class demon that escaped from the Makai and entered Feudal Japan. But when loyalties are tested and lives are put on the line, love and jealousy clashing, what will happen? Will both worlds be saved by the two teams, or will they be left to crumble away into darkness? They say love conquerors all, but here, love is the source of all the problems.