Whenever I think of you the stars fall down. -- "There are no mountains behind me." -- "There are mountains behind you." "I am your mountain." Zhong Eucalyptus, the first man who said this to me was my father. The second man who said that to me was you. He was the master of memory, with the ability to never forget, seemingly always meticulous, always unmoved. She, on the other hand, suffers from face blindness where she can't even recognize her own face, intruding into his ordered world like a sluggish, confused koala. His clear, bright face became the streetlight in her life. The streetlight has always been there. And when faced with the differences in each other's careers, the real cause of her father's death, the whereabouts of her missing brother, how should they choose, how to trust ...... "Even if in the future you no longer recognize the face, it does not matter, I recognize you just fine."