Inu X Boku Secret Service

Ririchiyo convinced her parents to let her live alone in Maison de Ayakashi with a bodyguard; Ririchiyo tries to drive her bodyguard, Soushi, away.

Ririchiyo goes shopping with Sorinozuka to keep her out of the complex until 6. Upon their return, they find that Karuta has suddenly gone missing.

Ririchiyo handles with making a good first impression at school, then notices Soushi turning a girl down. Her emotions get the best of her when she confronts Soushi about it.

Watanuki, a former resident of the complex, has returned from training with his SS, Natsume, who hints that he knows secrets about Soushi's past.

Ririchiyo starts receiving disturbing text messages from a block number; she initially shrugs them off, but the messages only become more frequent and threatening.

Roromiya spends a lot of her time in her own world; Watanuki believes people don't understand her, and Ririchiyo wants to get closer to her but doesn't know how.