Digimon Tamers(デジモンテイマーズ)

When their Digimon card game characters suddenly come to life, a group of 12-year-old fans begin to defend Shinjuku against wild Digimon roaming the city. Unbeknownst to the team, Hypnos, a sinister intelligence agency, has been tracking down and capturing Digimon and banishing them back to the Digital World.