Note from The Future: Shimako being a secret Buddhist is an incredibly dramatic plot point in the original series. Even though nobody’s trying to kill her for it.

Heinkel: Yumiko. Tell her to move, or I’ll assume she’s bewitched and shoot through her.

Yumiko: {Rosa Gigantea, please step aside.}

{There is a witch at this school, and your soeur avoided confession. She may be putting all of the students in danger. We can’t take that risk.}

Sei: {What are you, insane? Of course she didn’t go to confession! Shimako’s a Buddhist!}