After rewatching the Kimimaro fight I realized he's a direct descendant of Kaguya, a bit of foreshadowing from naruto part 1 that only makes sense after completing all of shippuden : r/Naruto
Kimimaro Kaguya | Wiki | Naruto Amino
Kimimaro | Narutopedia | Fandom
Who is the strongest character Healthy Kimimaro (Naruto) can beat? - Battles - Comic Vine