Hadaka no Tsukiai

When Generalissimo asks for Benika's motives for wanting to join the Sealing Faction, he teleports them to a hot spring so they can bathe. She immediately understands he's invoking "hadaka no tsukiai" and complies, sharing her backstory and why she thinks the world isn't ready for psychic powers, all while Yōsuke feels awkward about her shamelessness.

Example of:
Nudity Equals Honesty