The title song was used as the opening to the 2007 J-Drama version of Hanazakari no Kimitachi e.
Mizuki Ashiya and Izumi Sano, the two main characters in the manga Hanazakari no Kimitachi e, are named after him.
The 2007, Fuji TV summer drama Hanazakari no Kimitachi e, controversial in its gender-bending nature, was perhaps Ikuta's biggest break in Japanese Entertainment.
Hanazakari no Kimitachi e (TV Special, 2008) (as Ashiya Shizuki, Ashiya Mizuki's brother)
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Hanazakari no Kimitachi e (TV, 2007) (as Ashiya Shizuki, Ashiya Mizuki's brother)
He is best known for his roles as Kohei Kitahanada in Fuji TV's Hanazakari no Kimitachi e/Ikemen Paradise drama, Otoya Kurenai in TV Asahi's tokusatsu series Kamen Rider Kiva, and the voice of Vaan in Final Fantasy XII.
He is best known for his roles as Sadaharu Inui of the fourth generation Seigaku cast in The Prince of Tennis musical series, Tenimyu, and Shijo Haruki in Hanazakari no Kimitachi e / Ikemen♂Paradise TV drama.