メディックの助けで負傷から立ち直った進ノ介は、ハートと共に再びシグマとの戦いに身を投じていく。最後の力を振り絞った２人の攻撃が、シグマに炸裂して―――。
Medic, in exchange for her life, healed Shinnosuke. Now, he and Heart use the last of their strength to destroy Sigma. After Sigma is destroyed, Heart challenges Shinnosuke for the last time to put an end their rivalry. However, Shinnosuke tries to call off the duel by convincing him to co-exist with humanity.
