In the aftermath of the most devastating conflict mankind had ever experienced, the tiny island of Shikotan became part of the Sakhalin Oblast… and on the unhealed border in this remote corner of the world, friendship among children from two different countries timidly blossomed, striving to overcome language barriers and the waves of history. Inspired by true events.

The ST team at the Tokyo Metropolitan Police Department consists of eccentric members. Some members do not cooperate with others and others do not reveal themselves in front of others. With Samon as the leader of the ST team and young Inspector Tomohisa tasked with managing the team, the ST (Scientific Task Force) attempt to solve the most difficult of cases.