Wendy has released a love song for the stars of 'Kiss Is Just a Kiss!', although the title of the song is unclear, with reports suggesting it may be 'All You Need Is One Word' or possibly a different song titled 'Sweet Love'. The song is part of an original soundtrack, with Wendy being the second artist to contribute to the 'Dynamite Kiss' OST. The release marks Wendy's return as a prominent figure in original soundtracks, or ost queen.