Awakening from a near-death experience, Le Xiao finds herself in a world utterly alien to her. The customs, technology, and even language are foreign. Lost and terrified, she clings to the only familiar name: Papa. But the mysterious, cold-eyed man who holds her close seems to know more than he lets on. Is he her savior or her captor? And what happened to the life she remembers?

Transported to an interstellar future, you, Xie Tao, an artist, find yourself tasked with a most unexpected mission: saving the world by becoming a caretaker at a struggling 'Cub Raising Association.' Amidst advanced technology and alien races, you must navigate the challenges of this unusual role, caring for a diverse group of young cubs – from fiercely territorial Mukas to aloof Takilas and quiet mermaids – all while trying to understand the true nature of the world's impending destruction and your part in preventing it.