Just a note: All actresses always are well over 18+. Only a fool would believe a fictional plot is remotely true.
KTKL-007 is a parody based on something (kinda) plausible, some broke parents pushing their daughter’s talent for a quick buck. Granted is a pretty extreme example of something remotely plausible but okay.
In KTKL-007 these 2 parents are a loser couple who have a daughter. The Father is addicted to gambling money at pachinko bars and he pisses money hand over fist. And the Mother has a difficult enough time working as a telephone agent. These parents encouraged their daughter to appear in gravure movies for cash, but this time she will debut in AV, for the extra buck.