I was gonna recommend Twelve Kingdoms but it starts out pretty wordy and I didn't know if he'd want to stay on board for how awesome it gets.
Gonna throw Higurashi out there, too.
There are no decent Higurashi trailers, so here's the OP.
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http://img.imgcake.com/tumblrlydlw2kYU21r0x924o1500gifru.gif
http://img.imgcake.com/1326165368699gifme.gif