Here is the full list of all 15 Sexy Breakout achievements.
STAGE02 CLEAR
STAGE01 CLEAR
STAGE03 CLEAR
STAGE04 CLEAR
STAGE05 CLEAR
STAGE06 CLEAR
STAGE07 CLEAR
STAGE08CLEAR
STAGE09 CLEAR
STAGE10 CLEAR
STAGE11 CLEAR
STAGE12 CLEAR
STAGE13 CLEAR
STAGE14 CLEAR
STAGE15 CLEAR