Nihon TV announced a new short TV anime "Chi-Sui Maru". It's a 6 min x 8 episode series and will start on February 6th. The producer is Rareko, known as the creator of Flash anime "Yawaraka Sensha (Youtube
Chi-Sui Maru official website
The story is about offensive and defensive battles between an office worker Nobuo and a mosquito Chi-Sui Maru.