Which one has the "Telepathic Kiss" power: Hana or Daichi?
Well, earlier in the series, Hana was worried about Daichi kissing her. She said something along the lines of "I was worried you'd hate the real me". Thus, she knows that the kiss between them would be telepathic. We can assume from this that She is the one with said power.

and as for Stevebot's answer, the Planetary gears Princess was under control of a mind-transfer machine when she was telepathic-kissed, and saw her foster mother's evil intentions. So telepathic kiss works despite mind-control