Natsu no Hydrangea

 (夏のハイドレンジア; Summer Hydrangea) is the 21st single by Sexy Zone. It in three editions: two limited editions and a regular edition.

The title song "Natsu no Hydrangea" was written by Hata Motohiro as the theme song for the drama She Was Pretty starring Nakajima Kento and Koshiba Fuka. The heroine of this drama is likened to a hydrangea that blooms dignifiedly even in the rain that falls in the city, and the song contains the message "It's okay to be you as you are."

The music video was set in a closed school. Filming was done in nostalgic locations such as rooftops, gymnasiums, art rooms, classrooms, and swimming pools. The special feeling of first love was expressed using lasers, smoke, and lighting. In the rainy scene, the members show sad expressions.

The single was certified Platinum by the RIAJ in August 2021 for selling more than 260,000 copies.

CD

 * 1) Natsu no Hydrangea (夏のハイドレンジア)
 * 2) Never lie to me
 * 3) Never lie to me (Instrumental)

DVD

 * 1) "Natsu no Hydrangea" Music Video
 * 2) Making of "Natsu no Hydrangea"

CD

 * 1) Natsu no Hydrangea (夏のハイドレンジア)
 * 2) Momoiro no Zettai Ryouiki (桃色の絶対領域)
 * 3) Momoiro no Zettai Ryouiki (桃色の絶対領域) (Instrumental)

DVD

 * Special Project "Sexy Zone Best Holiday! Sexy Camp Edition"

Regular Edition

 * 1) Natsu no Hydrangea (夏のハイドレンジア)
 * 2) Prism
 * 3) Heat
 * 4) Natsu no Hydrangea (夏のハイドレンジア) (Instrumental)
 * 5) Prism (Instrumental)
 * 6) Heat (Instrumental)

Oricon

 * Monthly ranking


 * 2021
 * August
 * 3
 * 263,801
 * 2021
 * September
 * 39
 * 5,477
 * }
 * 5,477
 * }


 * Yearly ranking


 * 2021
 * 23
 * 272,492
 * }
 * }
 * }


 * Weekly combined ranking


 * 1
 * 250,678
 * 32
 * 10,068
 * }
 * 10,068
 * }