Saotome (五月女, さおとめ), full name Saotome Hikaru (五月女光, さおとめ ひかる), is 2nd year student of Hanazono High School in the Kunio-kun franchise. He debuted in Downtown Nekketsu Kōshinkyoku: Soreyuke Daiundōkai and returns in Bikkuri Nekketsu Shin Kiroku! Harukanaru Kin Medal.
Saotome is considered the second strongest delinquent of his school, behind Riki. He views Sugata of Nekketsu High School as his rival. Following the release of Nekketsu Kōha Kunio-kun Special, Wataru is considered as Riki's number two. However, in River City Super Sports Challenge ~All Stars Special~, Saotome reminds Riki that he is the number two of Hanazono (Riki is also using Wataru as a lackey in the game).
- In Crash 'n the Boys: Street Challenge he is renamed Nathan "Nate" Vanderpoole and is a member of Washington High School.