Dear Shimazaki in the Peaceful Land

Dear Shimazaki in the Peaceful Land summary:

As a child, Shimazaki Shingo was kidnapped by an international terrorist organization and raised as their combat agent.
After 30 years, he finally made it back to his peaceful hometown in Japan.
Will Shimazaki be able to live a peaceful life in this new world?
From the large-scale newcomer Goten Hamada and the artist Takeshi Seshita, the creator of “Harn – Grass, Iron and Sheep -” and “Invincible”, an action story of a man who lives between everyday life and the battlefield!