The Boss, also known as Boss and The Director, is the leader of Eternal, intending to gain eternal life by finding the keys to Cure Rose Garden and take over the worlds adding everything of value to his collection. He is almost always thinking of Flora much to Anacondy's displeasure. He sits in a levitating mechanical throne for most of the series though he can walk on his own and even fly without it.
He is a tall man wearing a maroon cloak over black robes and wears a silver helm on his head with long dark blonde hair.
He has some sort of history with Flora before she sealed the entrance to the Cure Rose Garden where he met Flora and fell in love with her. But then she locked/sealed the gates/entrance and hid the garden where no one and Eternal would ever find it and they stopped communicating with him. Wanting the garden and her, he rushes his employees to get it from the Precures.
- His true name is never revealed and was always called Kanchō in the anime but is translated as The Curator or The Director in some English subbers.
- His and the other main villains silhouettes (Dark King, Goyan, Desperaia, Moebius and Dune) are seen in Pretty Cure All Stars DX 3: Mirai ni Todoke! Sekai wo Tsunagu☆Niji-Iro no Hana. The Boss' silhouette represents Eternal.