FNC Entertainment, P1 Harmony's agency, released Welcome to + WORLD (W+W) and From JIUNG on its official YouTube and SNS channels on December 19th.

Welcome to + WORLD (W+W) is content that explains P1Harmony's Metabus Worldview '+ WORLD,' which reflects the real world. The worldview film "P1H: The Beginning of a New World," which was released before its debut, and each member's superpowers and real charms through the first and second mini albums are shown in a casual mood character film, attracting attention.

In the released video, Jiung's meticulous personality stands out. After showing the members' abilities in a video, Jiung clearly explains that everything is connected within the worldview and helps the members understand. In the interview, the members also say that Jiung is a smart and thorough person. Jiung also emphasizes the perfectionist aspect, saying, "I like to develop while knowing new things."