OnlyOneOf has confirmed the release date of the new album and has begun a full-fledged comeback countdown.

OnlyOneOf's new mini-album 'Instinct Part. 1' will be released on major music sites at 6 p.m. on April 8. It is the first new album in eight months since "Produced by [ ] Part 2" in August last year, with "Song of Ice and Fire."

OnlyOneOf released a group teaser at midnight on the 17th and started preparing for its comeback. Although it is a denim-style casual look, Gyu-bin and Jun-ji's smooth abs that reveal their skin are impressive. In particular, Jun-ji's unconventional long-haired hairstyle attracts attention.

OnlyOneOf will put SexyKid at the forefront in line with the title of the album, "Innocent." However, OnlyOneOf's sex is different. It excludes wild and aggressive tendencies, which are inherent patterns of masculine sexiness. It has completed OnlyOneOf's Pure Sexy, which is delicate and stimulating its protective instinct.