Hajime asked Shia to do so at the time the rockets were fired into the incoming sandworms because the stimulation might be too strong for Myuu. Like that, in synchronization with Hajime, Shia was already embracing Myuu closely to her chest so as she would not see it. However, maybe because she could not breath from her face being buried in Shia’s breasts, Myuu tried to sip out and inadvertently touched a part of Shia’s body. Inadvertently, Shia moaned. Hajime decided that he did not hear anything.