Each single contains four songs, a sitkcer randomly selected from nine kinds and bonus contents as shown below.

"Happy Happy" out JUL 17th

"Breakthrough" out JUL 24th

Type A: Contents

  • bonus DVD featuring a music video of the title song and its making-of
  • 24-page lyrics booklet
  • trading card randomly selected from ten kinds
  • Tall digipak packaging
    •

    Type B: Contents

  • bonus DVD featuring a music video of the title song (Lip Sync ver.) & cover photo shooting
  • trading card randomly selected from ten kinds
  • Tall digipak packaging
    •

    Regular Edition: Content

  • trading card randomly selected from ten kinds (on a first-come-first-served basis)
    •

    TWICE Other New Titltes