Chapter 3-4 are the "We're Happy Family" series, originally translated by 美智. They've gone through the typical reedit, dialog-tweeking, proofreading procedure. Chapter 1-2 are translated by me, and they're all edited by AntiAgingAnon.
Chapter 08 is now updated as well. Hooray.
Note: I have no plans on translating the rest of the book.