ｆの魔弾

Hamasaka Kazuya is found in a completely locked apartment together with two corpses; the gun lying beside him and with gunpowder residue on his clothes. Even though Kazuya seems to hide something, he claims false accusation and asks his advocate to call for his old friend Minami Mikikaze whom he expects to solve this case. However after seeking out a person in America who seems to be related to the two victims, Mikikaze himself gets caught in a similar locked room scenario...