How deep is your heart?   Deep inside the darkness daremo shiranai tokubetsu na   Want to feel...     Sono yami ni furetakute sotto te wo nobashita kimi ni   Kizukarenai you ni...nodo bakari kawaita     Reached out to your heart   So deep yawarakaku tsutsumareta sono kokoro motto fukaku shiritakute ah     How deep is your heart?   Deep inside the darkness daremo shiranai tokubetsu na   Want to feel...     How deep is this love?   Deep inside your heart yasashiku kowarenai you ni   Want to touch...     Sou dare demo himitsu wa aru   I even have so many secrets...maybe more than you   Kokoro fukaku kakusareteru   I wanna know your little secret that you have deep in you     Reached out in the dark   So warm zaratsuita ase ga kokoro no hida wo amaku nurasu ah     How deep is your heart?   Deep inside the darkness daremo shiranai tokubetsu na   Want to feel...     How deep is this love?   Deep inside your heart yasashiku kowarenai you ni   Want to touch...     How deep is your heart?   Deep inside the darkness... Somewhere unknown and special   Do you want to feel...?   Do you want to feel...?