AKB48 member Nagao Mariya (永尾まりや)'s 1st solo gravure "Utsukushi Saibo" (美しい細胞 ) first week sold 7,463 copies, and ranks no. 1 at ORICON Weekly Chart (7-13 March 2016 ).
Original sources: ORICON Style
"Utsukushi Saibo" cover
Nagao Mariya first photobook's has been be released at her 22nd birthday (10 March 2016).
Order on CDJapan: