Technology: I Have a Cosmic Civilization Technology Tree!

Dear readers: The little god bows his head and thanks you all for your compliments! I haven't decided yet what introduction to write. Thank you for staying here to read this book, the little fairy is deeply honored! This is my first time writing an article, so please correct me if I am wrong! I don't want to bother you all with scattered articles, so I will try my best to update as much as possible. Gentlemen, you can save up and watch it again, it won't be a mess or eunuch! The only update channel: Tomato! Farewell, little fairy! So, open the book!