Geh! You should be dead!
Decapitated by a witch and died!
jojo's_bizarre_adventure miki_sayaka puella_magi_madoka_magica sword thighhighs tomoe_mami yom

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Wish I knew what sayaka said
There, I added a translation. I'm not entirely sure about the last line. Someone fix that if it's not correct.
巴 is "Tomoe", lol. I think this might be a Jojo parody.