Alice In Bishounen-Land v.1 GN
Alice Kagami is an ordinary high school girl who doesn't really get her friend Tamami's obsession with idol games. There's more to life than handsome digital boys, dating sims, and mini-games, right? But then, Tamami is "chosen" as one of the top idol fangirls in the country and gets drawn into the game -- and hapless Alice gets pulled in too!
Between dealing with the mismatched members of her idol group to intense pressure to spend real money on gachas, how is a total idol game newbie supposed to take them to the top?