日本赤軍
is a co-leader of the terrorist group "Protectors of the Islamic Front" and a patient, sociable person who rarely loses his cool. Despite being involved with an Islamic terrorist group, he himself is an atheist. Born in the Adachi ward in Tokyo, Masahiro was once an enthusiastic activist for human rights before joining the Japanese Red Army during the Cold War. Later, he was forced to evade arrest by hiding overseas after most of its members were arrested; and it was the time he traveled to Bekaa, Lebanon, that he met Ibraha. Takenaka is based on the Japanese Red Army member Kozo Okamoto.