A Cruel Angel's Thesis

Zankoku na Tenshi no Tēze (残酷な天使のテーゼ) is a song covered by Photon Maiden.

It was originally performed by and served as the opening for the  anime series.

Lyrics
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English= • •  •

Live Performances

 * October 22, 2021: Photon Maiden 1st LIVE First Contact