Kimari, Shirase, and Hinata need to figure out a way that high school girls might be allowed to go to Antarctica. Although dubious about their chances, they quickly find a report about a high school-aged actress named Shiraishi Yuzuki, who's being allowed to come along. Shirase attempts to make contact with Yuzuki's agency, but it just so happens that Yuzuki has come to them.
she must have a pretty serious 
reason not to want to go.
.فلا بدّ أنّ لديها سببًا وجيهًا لعدم رغبتها في ذلك
debe tener una buena razón para eso.
debe de tener una buena razón para eso.
deve avere un valido motivo per non voler andare.
deve ter uma razão séria para isso.
значит, у неё есть на то веская причина.