Episode Title:
I'm Here to Keep My Promise!.
Episode Description:
Issei wakes up to find himself passed out after the Rating Game. Soon after, Grayfia informs Issei the results of the Rating Game. She gives Issei a magic circle that will allow him to attend the Gremory-Phoenix engagement party with Sirzechs' message that if Issei wants to do something, then to go in and rescue Rias by force. Issei crashes the party, but is interrupted when Sirzechs comes in and offers to host a one-on-one battle between Riser and Issei to liven things up since he found the Rating Game unsatisfying. Riser and Issei engage in fierce duel that ends with him hitting Riser with a crucifix and holy water. Issei discovers what was on the back of the transport circle Grayfia gave him. Sirzechs discusses his feelings and plans about Rias' forced engagement with Grayfia. Rias, overwhelmed by Issei's feelings and determination, rewards him. As a result of the duel between Dragon and Phoenix, Rias decides to live in Issei's house as well.
