The first album was released in a voice you want to hear the whole day '2015 rookie vocal group' day '.Vocal Group '21grm' Team was joseunguk 'and bands' J.Bread' vocals and chorus session and had worked as a vocal trainer Wujin PERFECT 'In-gyu Kim' team has done a vocal group 'day' was completed.The title song 'phone call' the deal Entertainment composer 'jeonjuseong (melody note)' activities and members look to each other as lovers are that the breakup songs plus a piano and guitar in Pop ballad style song contains the lyrics of joseunguk in Japan that is the mystery of the voice artists 'ANN' (Kariemusic entertainment Dept.) gave participated in featuring.In addition to this album many sessions and staff participated.Album cover is Choi Sun Ah designers 'work with a sad face, put a look of love which is the title track in the same room and gave me a design reminiscent of the' phone call 'Newcomer' ryujeongho 'jangmunyoung' gave participate in this jacket.Other SG Wannabe, Vibe, Hongdae light and other sessions gave our country participated in this one the best guitarist 'giminjip' in charge of arrangements on this album, Lee Kyung-lim, gave the session key. Also mixing and mastering as a sound designer and composer took on a 'bonus' being active 'choeminwoo' gave out the session to take a more vivid vocal chorus line.