Jikuu Senshi Spielban episode 6

[Disguisedagent]

Brief scene at 11:14. A pair of villainesses infiltrate a school by replacing a teacher and nun who work there. There's a brief narration at the end saying the heroes later found them tied up in a warehouse and freed them.
https://tokuzilla.net/watch/jikuu-sensh ... .html?ep=6