According to SM Entertainment's report, the group name, Hearts2Hearts, means "to connect with global fans through a mysterious musical world filled with various emotions and heartfelt messages, and move forward together as a greater 'us'".

[5] The next day, South Korean media including Maeil Business Newspaper and The Korea Economic Daily reported that Hearts2Hearts would debut on February 24, with promotions beginning in late January.

[9] Pop culture critic Ha Jae-geun noted that the group will be a "test" of the SM 3.0 corporate production strategy that was introduced in the wake of Lee's exit from the company.

[10] All members were revealed on February 3, when a trailer for the group, entitled "Chase Your Choice", was released on SM's official YouTube channel, and additional social media accounts were opened.

[14] Later on that day, Hearts2Hearts were selected as campaign models for the women's spring special exhibition at Musinsa, the largest fashion platform in Korea.