Try producing a cool-type idol! The road to becoming an idol is long...

Just the two of us, you and I.
Nana, a fledgling idol.
Nana and you aren't far apart in age.
We're both still inexperienced and don't have an agency, so we hold our meetings at a cafe.
Our relationship is that of friends from the same school.
Still at the street-level beginner stage. It's normal for any idol to start with 0 in all stats.

By taking various lessons—dance, vocal, visual (expressiveness)—the stat for the lesson you took, for example dance, will increase by 25 each time.

When in the fledgling state,
if Nana and Hatsuki both have Dance 25+, Singing 25+, and Expressiveness 25+, holding a live performance with Nana under these conditions will be a success. The title will change from fledgling to "Promising Rookie," increasing fame and sales. If 2 of the conditions (Dance 25+, Singing 25+, Expressiveness 25+) are met, it's a success and the status quo is maintained. If only 1 or 0 are met, the status drops from fledgling to rock bottom, and either Nana or Hatsuki's mental state will break, requiring care to recover.

If Nana and Hatsuki are "Promising Rookies" and have Dance 50+, Singing 50+, and Expressiveness 50+, holding a live performance with Nana under these conditions will be a success. The title changes from "Promising Rookie" to "Popular Idol," further increasing fame and leading to various offers due to the sales impact. If 2 of those conditions are met, it's a success and the status quo is maintained. If 1 or 0 are met, they are demoted back to fledgling.