The official website for the Amagami SS romance anime series has confirmed on Friday that the anime's 13th Blu-ray Disc/DVD volume will contain the story arcs for the Risa Kamizaki and Miya Tachibana characters from Enterbrain's original Amagami game.

The two characters will each have her own ending theme song (to be named later), and the accompanying CDs will ship on January 19, 2011. Voice actress Mai Kadowaki had already revealed last month that Risa Kamizaki would get her arc in the anime. Miya is the younger sister of the main character Junichi Tachibana.

The Amagami SS television anime series has been running in Japan since July 1, but its 24 episodes will only showcase the game's six main characters. The anime's first 12 Blu-ray Disc/DVD volumes will include these episodes at two episodes per volume. The distributor Pony Canyon had also scheduled the 13th Blu-ray/DVD volume for April 20, 2011, and had not announced its contents until now.

Source: Saishin Anime Jōhō

Image © Enterbrain, Inc./Amagami SS Production Committee

Update: More story information added.

Update 2: According to Neowing, the 25th anime episode, "Sneaking Heroine," will feature Risa Kamizaki. Neowing also states that the 26th anime episode, "Kimagure Wagamama Amaenbō," will feature Miya Tachibana.

Update 3: The anime's official website has confirmed that Miya Tachibana's episode will be unaired. It has not confirmed whether Risa Kamizaki's episode will air or not. [Via Livedoor, Uri-Sure Matome R]