This book tells the story of six teenagers who, after merging with a ginkgo baby, embark on a fantastical adventure spanning twelve years. Carrying the question of "Why does Lele know the secrets of millions of years in the future?", they set off on an adventure after graduating high school, unexpectedly discovering the underground civilization of Silver Star and becoming embroiled in interstellar conflict. The teenagers use their wisdom, friendship, and courage to unravel the mystery and successfully change the fate of Earth.
本书讲述了6位少年与银杏宝宝合体后，开启了一段跨越12年的奇幻探险故事。他们带着“乐乐为何知晓千万年后秘密”的疑问，在高中毕业后踏上探险之旅，并意外发现地下的银星文明，卷入星际纷争。少年们用智慧、友谊和勇气解开了谜团，并成功改变了地球的命运。
本书讲述了6位少年与银杏宝宝合体后，开启了一段跨越12年的奇幻探险故事。他们带着“乐乐为何知晓千万年后秘密”的疑问，在高中毕业后踏上探险之旅，并意外发现地下的银星文明，卷入星际纷争。少年们用智慧、友谊和勇气解开了谜团，并成功改变了地球的命运。
