[3] "I'll be there" was used as the theme song for the television drama Kizoku Tantei starring Arashi member Masaki Aiba.

[6] The single was certified Double Platinum by the Recording Industry Association of Japan (RIAJ).

The regular edition contains the B-sides "unknown" and "Treasure of life", and the instrumentals for all three tracks.

"I'll Be There" was used as the theme song for the television drama Kizoku Tantei starring Arashi member Masaki Aiba.

[13] In April 2017, the single was certified double platinum by RIAJ for shipments of 500,000 units.