This Walkthrough is being written with the goal of guiding a player to get 100% completion of MGQ parts 1 & 2 in one play-through. Forum:Archive/Help desk - Monster Girl Quest - Miraheze
A word of caution. Because MGQ is a niche fan-translated title, some archives on random file-sharing sites contain: MGQ Part 2 - Complete Monsterpedia and Save File.rar