第4話: 戦場での緊張した軍事作戦中、コタロウは初めての殺戮を経験する。

The episode starts with a scene in a war zone. Kotarou and a colleague talked to each other while inside a military vehicle. Enemies attacked them, which escalated to a shooting. Kotarou was especially tense, but chose to fight using his rifle. That was the first time he killed someone. (Source: Rewrite Wiki)

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