Yuju, who returned to solo, showed a variety of charms. Lifestyle magazine ⁇ Singles ⁇ released a picture of Yuju. Yuju in the picture boasted her alluring appearance in a dress full of personality, perfecting the visual concept of humorous and four-dimensional charm. Yuju's Album, which broke the gap of a year after his solo debut and came back with a mini Album ⁇ O ⁇ , has a flexible story like a travel essay, with the theme of each life itself being a journey. As for the reason why the title of the Album was made of ⁇ O ⁇ rather than any words or sentences, he said that he wanted to visualize the journey back and to make fun of imagining the meaning of ⁇ Zero ⁇ or ⁇ ⁇ ⁇ ⁇ ⁇ depending on the viewer. About the title song ⁇ Without U ⁇ , Yuju said that he indirectly expressed his desire to be with someone who is indispensable to you who can be a loved one, parent or Friend. In addition, there are lyrics that remind me of Friends and Friendships all over the track, but I felt that I was not alone because I had a Friend called ⁇ ⁇ music ⁇ ⁇ . Her own management method, which is known to be thorough in self-management, was faithful to the routine. There are separate routines for controlling the volume, vocalization, and breathing, such as humidity control and bellflower juice intake, and the most important rule is to maintain an empty stomach three hours before going to bed to protect the larynx. It is a habit to know the true heart of Yuju who treats music as a vocalist. On the other hand, Yuju's new mini Album was released on the 7th.