Context: Mogi Natsuki 茂木なつき, a high school girl 18 years old at the time, engages in enjo-kousai, and is depicted here getting inside the car of some unnamed man. She realizes her understanding of the value of money is distorted upon learning that her friend worked a part-time job through his summer vacation to earn only 120,000 yen (~1,200 dollars).
{okane wo morau} kototte {sugoku taihen na} koto nanda ne.. papa お金をもらうことってすごく大変なことなんだね・・パパ Receiving money is a {very important} thing, isn't it.. daddy.
Natsuki wa papa to tsuki ni sankai hoteru ni iku dake de san-juu-man mo moratteru kedo.. なつきはパパと月に３回ホテルに行くだけで３０万ももらってるけど･･ Natsuki is receiving 300,000 yen (~3,000 dollars) just to go to the hotel with daddy three times per month, but..
Next panel, not in image:
sonna ni takusan moratte ii no? そんなにたくさんもらっていいの？ Is [it] alright [for me] to receive so much?
Note: Natsukiuses her own name as first person pronoun, a practice commonly done by young children (e.g. Yotsuba), and a trait added to characters who aren't very bright.
Her relationship with "papa" becomes a source of drama later in the series.
