4th Ai no Nanchara Shisū

4th Ai no Nanchara Shisū (4th 愛のなんちゃら指数) is the 4th album by J-pop idol group Berryz Kobo, released in Japan on August 1, 2007, and in South Korea on May 25, 2008. The first press of the CD came with 8 interchangeable covers, as well as solo shots of each of the 7 members.

CD

 * 1) "Ai no Suki Suki Shisū Jōshōchū" (愛のスキスキ指数 上昇中)
 * 2) "Munasawagi Scarlet" (胸さわぎスカーレット)
 * 3) "Omoitattara Kichi desse!" (思い立ったら 吉でっせ!)
 * 4) * Performed by Chinami Tokunaga, Maasa Sudo and Yurina Kumai.
 * 5) "Very Beauty"
 * 6) "Waratchaō yo Boyfriend" (笑っちゃおうよ BOYFRIEND)
 * 7) "Watashi ga Suru Koto nai Hodo Zenbu Shite Kureru Kare" (私がすることない程 全部してくれる彼)
 * 8) * Performed by Momoko Tsugunaga and Risako Sugaya.
 * 9) "Sayonara Hageshiki Koi" (サヨナラ 激しき恋)
 * 10) "Kokuhaku no Funsui Hiroba" (告白の噴水広場)
 * 11) "Sprinter!" (スプリンター!)
 * 12) * Performed by Saki Shimizu and Miyabi Natsuyaki.
 * 13) "Sakura wa Raku sa" (サクラハラクサ)
 * 14) "Sakura→Nyūgakushiki" (桜→入学式)

Limited edition DVD

 * 1) "Munasawagi Scarlet" (胸さわぎスカーレット)
 * 2) "Very Beauty"
 * 3) "Waratchaou yo Boyfriend" (笑っちゃおうよ BOYFRIEND)

Featured line-up

 * Saki Shimizu
 * Momoko Tsugunaga
 * Chinami Tokunaga
 * Miyabi Natsuyaki
 * Maasa Sudo
 * Yurina Kumai
 * Risako Sugaya