The event for the song Himitsu no Heya no Onnanoko was a token event held from March 7, 2017 until March 14, 2017. It was the nineteenth event to be held (the eighth token event).
The token for this event was secrets (Ja: 秘密, Rom.: himitsu).
- [Himitsu] Hotaru (SR) (Card #276)
- [Himitsu] Mei (SR) (Card #277)
- [Himitsu] Hotaru&Mei (SR) (Card #278)
- [Himitsu] Mei&Hotaru (SR) (Card #279)