They're all here to look for true romance — but hidden among the women is at least one "wolf" who's prohibited from falling in love.
Aoyama Haru and Kagaya Kaede have been friends since they were 4 years old, when they began living next door to each other. They are now 24-years-old and still live in the same apartments. Kaede has held feelings for Haru for the past 20 years, but Haru doesn’t seem to realize her feelings for him. She talks about this situation with her childhood friends Iori and Mio and decides to give up on her feelings for Haru. But, it's not easy for Kaede to disconnect her feelings for him. Meanwhile, Iori has liked Kaede since he was an elementary school student. He approaches her. Seeing this, Haru becomes disturbed. In fact, Haru made a promise with Kaede’s late mother and he is honoring it.
In 2038, Yuuma Sawatari is an elementary school kid who loves everything about space and astronomy. He was initially excited when his parents bought a robot called Nanako, but he was disappointed when he learned that she was basically just a boring housekeeping robot. However, when he does finally try to talk to her about space, something strange happens. Her system crashes and is taken over by what claims to be a marooned alien ship! The alien ship wants Yuuma's help to get back to space!