The Weakest Tamer Began a Journey to Pick Up Trash (Manga) Vol. 4

When Ivy learns shes starless, she knows her life is over. Without stars, she cant use her Tamer skill to subdue even the smallest of animals. So she flees into the forest, where she befriends a lowly slime named Sora - the one creature she can tame. Together, this unlikely pair begins salvaging other peoples rubbish in an attempt to turn their lives around!