Board Thread:Versus Debates/@comment-30966312-20180218185025/@comment-34678409-20180401201945

About? Four kage level still does not equal seven. Sakura and Kakashi might be strong, but I doubt they can compete with the five. And

"Many years later, Sasuke Uchiha began investigating Kaguya's reasoning behind creating the White Zetsu Army in the first place. His ultimate theory was that there was a threat which even Kaguya was afraid of, and spent a large majority of his life researching Kaguya's history and her separate dimensions. His suspicions were confirmed true when he eventually met Momoshiki Ōtsutsuki and Kinshiki Ōtsutsuki. During his travels, he found Kaguya's encrypted scroll hidden in the icy realm. When it was eventually deciphered in Konohagakure, it provided crucial information about Kaguya's enemies and was extremely valuable in cementing their defeat."

Kaguya feared Momo, the wiki implies it.