It was released for digital download and streaming as a single on April 3, 2020, through TV Chosun under license to Kakao M. Written by Kim Eana and composed by Cho Young-soo [ko], the track was produced as a special song for Lim, who became the final winner of the reality television show Mr.

A piano version of the song was also released as a single on June 22 of the same year, with its accompanying music video simultaneously uploaded onto Kakao M's official YouTube channel.

"Trust in Me" attained commercial success, peaking at number 11 on the Gaon Digital Chart and becoming the singer's first top-20 single in South Korea.

[2] It was written by lyricist Kim Eana and composer Cho Young-soo [ko]; they had previously worked together on Yoo San-seul's song "Redevelopment of Love" (Korean: 사랑의 재개발; RR: Sarang-ui Jaegaebal).

[3] As a combination of standard pop ballad and trot, the track expresses a person's heartfelt gratitude towards his or her beloved people, with the singer's sincere voice and delicate emotion.

[2] A waltz-esque piano version of "Trust in Me", arranged by Cho who composed the original track, was surprisingly released as a single on June 22 the same year.

[6] According to New Era Project, the singer's management label, this version was recorded as a gift to his fans, with his thankful heart for their love and support.

[6] Prior to its release, a snippet of the song was featured in a commercial for Maeil Dairies [ko]' coffee brand "Barista Rules".

[11] "Trust in Me" entered the top 10 of the major real-time music charts in South Korea upon release, including Melon, Genie, Bugs and Naver Vibe.

[12][13] The single debuted at number 20 on South Korea's Gaon Digital Chart for the issue dated March 29 – April 4, 2020.

[34] He even sang the song as a duet with singer Lee Hae-ri during the 18th episode of TV Chosun's Romantic Call Centre which aired on July 30 the same year.