3CD + 2DVD release from D-BOYS focusing on the event "Kotoshi no Natsu wa Mainichi Dokoka de D-BOYS Ukiuki Yatta Hohhohoi" ("Natsudoko," in short). Features Shunji Igarashi, Koji Seto, Yu Shirota, and more. The three CDs includes three versions of an audio drama "Natsu no Kakehashi." The two DVDs includes making-of footage of "Natsu no Kakehashi" and a documentary of the event "Natsudoko." Includes a photo book and a trading card. *A content of the photobook and the trading card are different according to each box (three versions: SSCX-10471, SSCX-10476, SSCX-10481).