Curious about his actual identity, Sakura learns from Rinne that his grandma Tamako married his human grandfather and granted him a longer lifespan. After a spiritual incident at an abandoned club building, she comes across a cat that turns out to be Rokumon, sent by Tamako to help her grandson in his shinigami duties. Sakura finds out that Rinne lives in the abandoned building because his grandpa died and that he has to take on his grandma's entire shinigami workload due to marrying and extending the lifespan of a human. The next day, another spiritual presence is felt around the building.