Lady Hunter: Killing Prelude

A former soldier working in a daycare centre has to take a young boy home with him when his mother does not show up to pick him up at the end of the day. While driving home he escapes a kidnap attempt on the child by a mysterious group of armed men and decides to hide out with his former lover Saeko, a female former soldier with whom he was in love during their time in the service together. He and Saeko must protect the boy at all costs.