Living With Job System On Earth

So, i get Job System from my parents, you see, my father is a hero (former) that got summoned to the other world, met and married my mother, residence of that world. After defeating the demon lord, he can choose one reward from the goddess, the reward he chooses is "bring my mother back to earth with him"

Having a three kid, having a job, living a normal life and etc. Until he got summoned to the other world again along with my mother, and leaving the three of us alone

I need to make a living for my siblings all of sudden! how do i do that!? Quest system? completes the quest and get a reward?

The Quest that i have: kill 10 lions, kill 25 wolves, kill 10 bandits, capture a Yeti, nope sorry sis, don't want to spend the rest of my life in jail and don't expect me to fly all the way to Himalaya to capture a Yeti...wait Yeti exist?