▽ Looking back on the live broadcast that was broadcast in the turbulent 2017! BEST20 is this! !! ▽ After all I like live ♪ BEST20 is carefully selected from the many live broadcasts that made 2017 a lot of excitement! ▽ Looking back on things that I didn't notice during the live broadcast, it was ridiculous! !! ▽ The fact of the regulars is discovered in my favorite telephone SEX! ▽ The full version also includes Yukari Miyazawa, who was working hard during the VTR, and Nico Nico Live limited telephone SEX!