Their aunt is cruel. They are not fed and rested. They are tired of housework. A little twitching, slapping. They couldn't stand it when Aunt's husband almost took advantage of Reyn's sister. They just escaped and as bad as it sounds, her sister took the uncle's wallet, then they left. They used its contents to get to the city and look for their mother.
But they were not lucky in the city. The area is huge and they don't know their mother's exact location. They ran out of money without seeing her. Since they didn't know anyone, they lived together on the street and begged to get a coin to overcome their hunger.
Until Reyn ended up getting sick living on the streets. Since, they are always rainy, sunny and most of the time, she caught a cold. She also had a fever until it didn't go down even after her sister rubbed her with a cold bandage. She was shaking and felt like she was going to die.