Ai Yori Aoshi: Enishi

One year has passed. Everyone at the Sakuraba Mansion is having happy and pleasant times together, while Kaoru and Aoi's relationship is still kept a secret. One morning, Chika asks everyone something that she's been wondering about. "Do you guys love Big Brother?"

Chika enjoys her high school life by studying hard and swimming in her swimming club. Her two closest friends, Natsuki Komiya and Chizuru Aizawa, are her classmates and fellow swimming club members. One day, Natsuki and Chizuru discover a picture of Chika and Kaoru together, and they assume that he is her boyfriend. Finding out that Chika and Kaoru are living together at the Sakuraba Mansion, they demand to see Chika's boyfriend.  And they come visit the Sakuraba Mansion on that Sunday.

Kaoru and Aoi, married and living a sweet life as husband and wife, spend their time alone, just the two of them. As Kaoru wakes up from the dream, he finds himself inexplicably on top of Aoi. "Aoi-chan!? What are you doing in my futon!?"  Aoi shyly answers the surprised Kaoru. "I just wanted to spend a little time in the same futon with you, Kaoru-sama."  A romantic mood ensues, but they suddenly hear Tina and Taeko in the next room, and Aoi walks out of the room feeling embarrassed. That morning, they find out that Chika is playing tennis on her school's field day. Everyone at the Sakuraba Mansion decides to help out Chika by practicing tennis with her.  In the end, even though Kaoru enjoys playing tennis with everyone, he still wishes he could spend time alone with Aoi.

One night, Tina falls asleep drunk in the Sakuraba Mansion living room, and she hears a mysterious sound from the attic that wakes her up.  What's causing this strange sound? The next night, she hears the same sound.  Tina assumes there is a ghost and goes into a panic!  Not only that, but Chika and Aoi also say that they heard the same mysterious sound. Taeko, who loves ghost stories, hears about the incident and stands up to fight. "I won't let you guys down!  So let's exterminate them together!" Ignoring Tina, who is screaming for mercy, they go on to the ghost hunt.