GuessAnime.

3. School Days: Magical Heart Kokoro-chan

Originally an April's Fool in 2007, this one episode OVA is a spin-off of the School Days game by 0verflow, and shows Kokoro Katsura, the little sister of one of the main characters, from her other side. A mahou shoujo out to save the world, or something like that.

School Days: Magical Heart Kokoro-chan is finished and has 1 Episodes. It is also Known as: School Days ～マジカルハート☆こころちゃん～, School Days: Magical Heart Kokoro-chan

2. Higurashi no Naku Koro ni Kira

With things such as story out of the way, Higurashi cranks up the fanservice with Kira, a new OVA series to commemorate the series' 10th anniversary, featuring nail-biting situations such as Rika and Satoko becoming magical girls to battle evil magic crime syndicates with the help of their trusty squad of cheerleaders, among other things.

The excitement may be too much to handle. Do you dare step inside the... "different" world of Higurashi no Naku Koro ni Kira?

When They Cry Kira is finished and has 4 Episodes. It is also Known as: ひぐらしのなく頃に煌, Higurashi no Naku Koro ni OVA 2, When They Cry Glitter

1. IS: Infinite Stratos 2 - World Purge-hen

A program called "World Purge" sends illusions to all the girls about their ideal fantasies.

IS: Infinite Stratos 2 - World Purge-hen is finished and has 1 Episodes. It is also Known as: IS〈インフィニット・ストラトス〉2　ワールド・パージ編, IS: Infinite Stratos 2 - World Purge-hen