Adult PC Game: Words Worth Final by Elf Archive

God created Light and Shadow and separated them with the power of the divine Words Worth Tablet. One day, the Words Worth Tablet shall be read and all will be understood, and Light and Shadow will join and become complete. But someone has shattered the Tablet. The Tribe of Light and the Tribe of Shadow each blame the other and war ensues for 100 years. The story revolves around the bumbling but very skilled Prince Astral of the Tribe of Shadow who may be the one to bring the Tribes together and restore peace.​