“悪魔の子 (Akuma no Ko),” also known as “Child of Evil' is a song by ヒグチアイ (Ai Higuchi) that is being used as the ending song for 進撃の巨人 (Attack on Titan) Final season part 2.

Through Higuchi’s deep yet penetrating voice, the song is written from the perspective of Eren Yeager which are reflected throughout the MV as well as the lyrics. It depicts Eren’s personal growth, inner battle, and the philosophy behind his actions. The ED echos to the first ED of AoT 美しき残酷な世界 (Utsukushiki Zankokuna Sekai) where it was sung from the perspective of Mikasa Ackerman, Eren’s close friend, and marks the perfect ending to a work that spanned so many years.

The song has not been announced beforehand and is only made known when the first episode of the final season is televised.