The newest experimental maid robot from Kurusugawa Electronics, driven by software called 'Dynamic Intelligence Architecture' designed by Sango. The body is customized from the mass-produced HMX-16 'Leon'. Ilfa proposes to work at Sango and Ruri's house during her testing phase which angers Ruri because she takes all her jobs. Even though she is hated by Ruri, Ilfa loves her because Ruri is the one who shows her that the outside world is not frightening. In the anime OVA, Ilfa is asked to serve at Yūji's house because he has a maid gynoid fetish which becomes a learning experience for her thanks to Tamaki.

Following her graduation from middle school, Konomi Yuzuhara enters the same high school as Takaaki Kono, her childhood friend. As the new school year begins, they meet their childhood friend Tamaki Kosaka, as well as many new accquaintances. Unbeknownst to the group, their encounters with each other will soon lead to many memorable adventures.
 
(Source: Anime News Network)

**Non-anime roles:**  
- HMX-17α Ilfa in "ToHeart2 AnotherDay" (Visual Novel)  
- Miren Sakurano in "Kimihagu" (Visual Novel)  
- Ryofu Housen (Ren) in "Koihime Musou" (Visual Novel)   
- Ryofu Housen (Ren) in "Shin Koihime Musou" (Visual Novel)  
- Shiori Momono in "11eyes -Tsumi to Batsu to Aganai no Shoujo-" (Visual Novel)  
- Takako Ayasaki in "Cartagra: Tsuki Gurui no Yamai" (Visual Novel)  
- Yukio Sumadera in "December When There Is No Angel" (Visual Novel)

The first and the second volume will feature Komaki Manaka and Kusakabe Yuuki, respectively.

Based on the Visual Novel ToHeart 2 AD (Another Days), the sequel to ToHeart 2.

Volume 1 
Silfa the robot maid is currently working at Takaaki's house. However, she seems to have a little trouble with her duties as part of it involves going out in public to buy groceries, and she's a bit "shy" in a sense. But when it comes to Haruka Yuzuhara's special curry, she'll do what she has to in order to make this special dish for Takaaki. And that includes some competition from Milfa (Harumi). 
Volume 2 
Involves summer, swimsuits and photography. 
(Source: AniDB)

According to Amazon Japan, a two-volume OVA series "ToHeart 2 Dungeon Travelers" was announced.  "ToHeart 2 Dungeon Travelers" is an RPG game on PlayStaion Portable released in 2011.

A collection of stories involving the girls of To Heart 2, with each episode focusing on a different character.
 
(Source: Anime News Network)