"Xiao Wei'er, the starry sky tonight is so beautiful!" "In the future, I will leave you one day, and you must learn to take good care of yourself!" "Wei'er, when I come back, I will tell you a secret!"... In Feng Jian's future memory, there has always been such a gentle and jade-like voice saying many warm words to her. However, the memory stopped at the critical moment, and those reassuring words disappeared. This made her panic, hesitate, and search desperately. Finally, a fantasy journey brought her to his world and revealed the truth behind the memory... "Wei'er, do you still remember me? Can a relationship of six years really be forgotten?..." Six years, really? She became Kazama Mirai and came to his world in less than a year! It turns out that she is just a substitute after all! [I spent six months betting my whole life to fall in love with you, but you used six years of memories to tell me that the person you loved was not me after all!