Mem-Cho/Plot

History
Ever since she was young, Mem-Cho wanted to become an idol, but her mother was single while managing three kids. She thought finishing high school and getting a job immediately would be the best course of action to ease her mother's burdens. However, her mother disagreed and wanted her to follow her dreams, so a young Mem-Cho applied for auditions to perform for a major label. This was cut short when her mother overworked herself and wanted her brothers to attend college. Hence, Mem-Cho dropped both the auditions and high school and started earning money through part-time jobs. She succeeded but ended up becoming too old to chase her dreams.

In this, she threw herself into streaming and lied about her age, which gained her many followers. Her Tik-Tok had no monetization, leading her to Youtube.

Dating Reality Show
Mem-Cho first appeared as a fellow cast member on the reality dating show LoveNow. She was introduced as a Youtuber in her third year of high school, and Aqua notes her as competent. Mem-Cho later treated the whole LoveNow cast to barbeque to celebrate her rising subscriber count. After an incident on the show caused Akane Kurokawa to become a victim of cyberbullying, Mem-Cho visited Akane's place during a typhoon to look for her and later called Aqua for help.

In support of Akane, Mem-Cho helped provide Aqua with photos and videos of the cast of LoveNow to reform Akane's public image.

The First Concert
After LoveNow had finished airing, she was invited by Aqua to join the new B-Komachi group. Although hesitant to join because of her age, she was welcomed. Now, she works as both an idol and an influencer.

2.5D Stage Play
Mem-Cho watched the Tokyo Blade stage play adaptation along with the former cast of LoveNow.

Private
Mem-Cho made a room tour video for the B-Komachi members to boost their Youtube subscribers. Later on, she, along with the members of the revived B-Komachi, planned to travel to Miyazaki to shoot their music video as part of growing their Youtube subscribers even more. They later used an original song composed by Himura for their music video, and Mem-Cho's friend and fellow creator Anemone Monemone became its director.

The Main Story
Six months after their trip to Miyazaki, B-Komachi rose in popularity due to the music video's success. After a concert, Mem-Cho consoles Kana after she breaks down because Aqua has been avoiding her for six months and confronts him about it. They go to her house and have an honest heart-to-heart talk concerning his treatment of Kana.