GWSN (Korean: 공원소녀; Japanese: 公園少女; Chinese: 公园少女; also known as Girls in the Park) is an seven-member multinational girl group formed by Kiwi Pop. They debuted on September 5, 2018 with the mini-album THE PARK IN THE NIGHT part one.
The group was set to hold numerous events to increase their popularity pre-debut until the final group debut.
On June 14, 2018, Kiwi Pop, a subsidiary of Kiwi Media Group released a teaser image for their first girl group named GWSN and the opening of their SNS with their reveal date set to June 18, 2018. On June 18, 2018, the group's official Twitter account released their first teaser video. Following this, two new members Minju and Lena were revealed on June 19, next Anne and Soso on June 20,Seoryoung and Miya on June 21, and the seventh and final member Seokyoung on June 23.
A live Facebook event was held on June 25, 2018 at 08:00 (KST). On June 26, a choreography cover of BTS's "DNA" mashup remixed with BLACKPINK's "Whistle" was posted on YouTuebe featuring members Miya, Seoryoung, Minju, Lena, Anne and Seokyoung. On June 27, behind the scenes images of GWSN's first photo shoot were released on Naver. Later that day, an official Facebook group for fans was opened. On June 29, a choreography cover of Red Velvet's "Peek-A-Boo" was posted on YouTube featuring members Miya, Seoryoung, Minju, Lena, Anne and Seokyoung. On June 29 at 06:00 (KST) a live busking event was held at Myeong-dong Station, Exit 6 to showcase the group's performance and hand out flyers. Early on July 7, a minor busking event was held at Sokcho High School. Later in the event, the third busking event was held at at the event zone of Yeouido Bamdokkaebi Night Market in Seoul at 21:10 (KST). On July 10, GWSN's Twitter announced that a debut reality program on Mnet named "GOT YA! GWSN" has been casted with the first broadcast set to air on August 2, 2018 at 19:30 (KST). The second live Facebook event took place on July 13 at 08:00 (KST). Sometime after this, their fourth busking event was held at Sunjung Middle School, their fifth busking event was held at Baemyeong Middle School, their sixth busking event was held at Bulgwang Middle School. The third live Facebook event took place on July 19, 2018. Soon after, they resumed their busking events, the seventh was held at Youngdeungpo High School, . Between their seventh and eight busking event, a choreography cover of TWICE's "Likey" remixed with Wanna One's "I.P.U" was posted on YouTube featuring members Miya, Seoryoung, Minju, Lena, Anne and Seokyoung. Their eight busking event was held at Sangsuh High School and Middle School and their ninth at Dongseongno, Daegu. On July 22, GWSN announced that they shall make their debut USA debut in Dallas at the Korean Festival, Carollton Asian Plaza on November 10, 2018. On July 24, a choreography video of a remix of Wanna One's "Energetic" was posted on YouTube featuring members Miya, Seoryoung, Minju, Lena, Anne and Seokyoung. Their tenth busking event was held at Banpo Hangang Park on July 28 at 21:30 (KST). The fourth live Facebook event took place on July 28 at 16:00 (KST). On July 29, GWSN announced that a mini fan meeting is to be held in Shinjuku, Tokyo, Japan on August 10 at 11:00AM. This event will mark the beginning of Japanese promotions. Their eleventh busking event was held in front of a Hyundai Department Store Complex in Sichon. On August 2, "GOT YA! GWSN"'s first episode aired on Mnet. The fifth live Facebook event took place on August 3 at 09:30 (KST). 
GWSN is intended to be a multinational girl group with members from South Korea, Japan and Taiwan.
Seokyoung was a former individual contestant on Produce 101. Her final rank was #30.
Their group name is created from the romanization of the hangul that spells out their name. In other words, Gong-won So-nyeo is taken from 공원소녀, which then is shortened to "GWSN". Their name literally means "Park Girls".  Additionally, their group name contains multiple meanings:
The meaning of "girl in the park" (公園少女) is that of a girl who wants to create music to bring happiness to everyone.
Their initials (GWSN) refers to the three directions on a compass: "north, west and south", while G stands for "ground". The implied meaning is that people all over the world will want to listen to GWSN's music and become their friends.
In Korean, "park" (공원) can be written with the numeric figures "01". From Korean, "0" can also be read as "yeong" (영), while from English, "1" can be read as "won" (원). The kanji used to write "eternity" in Japanese are 永遠, which also correspond to the hanja "yeong-won" (영원). This pun carries the meaning "when our girls in the park are united, they will be one (a group) for eternity".