Spoiler
She won’t go to the past. The experiment is actually a failure. But it did have some effect on time, that’s why Yurika from the very beginning has always heard to become a human. She’ll wake up here and remember everything, and they’ll defeat the red girl. Her father will go back to being human. And because of Yohan pouring too much mana and Yurika draining it, both Yohan and Yurika will become pure human (which is what they both still wanted). It’s a happy ending.

Can someone please spoil the novel for me? What happens? Did she really went to the past? Will the dad ever come back to being human? Please I can't take this anymore. Thank you for the blessing