Nihonbi 2 (Japan) (series title)
Undead Pool (International: English title)
A Girls high school swimming teamis having a competition. Aki persuades her friend, Sayaka, to join the swimming team. However, a mysterious virus is spreading through out the school. After Aki discovers the incident and tries to tell other people, she is killed. The swimming team takes up the challenge to cope with it and begins the fierce battle.