Shinjiro’s manga series Taboo Tattoo ended with the release of the 13th volume on 23 August 2017. Those who buy the volume at Animate or Tora no Ana will receive an illustrated card as a present and those who buy it at Gamers will receive a bromide.
Taboo Tattoo is an action manga where mysterious tattoos can provide a person with special abilities. When Seigi Akatsuka receives such a tattoo, he is involved in a war between countries. The series has been serialized in Monthly Comic Alive January 2010-August 2017. An anime adaptation aired in 2016.