Elena ended their trip early and returned to Lifua's house alongside Saska, Koene and Heity. After Elena interfered in the fight and stopped Heity from landing the killing blow on Saska, Heity was quite surprised. But from her father, she was aware of Elena's true identity as a super powerhouse from beyond the stars, so she decided to trust her judgement. But obviously she was still quite worry of Saska again attacking them. Her heart tool was just too strong and bizzare.
As for Koene, she was not as worried as Heity. Even though Saska's main target was actually her, throughout the whole battle, she had not felt any serious killing intent targetting her. Even though Koene was not really powerful, her sense for killing intent and such was quite high. So when Elena told her that Saska was actually a good person, with her high trust in Elena, she easily believed that.
