Sen shrine

 is located in Benten forest, which is near to the park at modern era.

At once, Inuyasha with Janis and Kagome heard a rumour from Umao and Shikako that demons existed in Benten forest. When they entered the forest and made some investigation, they saw a huge shrine located within it. They went inside and saw Sen appeared in the shrine. The reason that demons came out from the forest was Sen's sealing powers started weak. Sen gave some instructions to let Inuyasha and the others to remove five seal talismans at five small hokoro respectively. After Inuyasha defeated the demons and returned to the shrine for informing, the shrine was not able to let other visitors entered again.

Knowing that Sen was binded with Demon Blood Biding Spell, once again Inuyasha and Kagome with Janis returned to modern era to find Sen's blood. In order to let them confused easily and not to be found, Sen Shrine became a wide labyrinth. But at the end they finally found Sen's blood, which appeared to be a small red ball that placed on the table.