Weird Rules? Welcome to the Third World!

[Dual heroines for the main character + supporting characters with various orientations! ! ! [Non-traditional cool article, please don't read if you mind! Yu Shi can always hear sounds that are not of this world. "Twelve, twelve..." "Twelve, it would be nice if you were here." "I am yours and you are mine." … After she was diagnosed with severe obsessive-compulsive disorder, the voice appeared more frequently. One winter afternoon, Yu Shi died from a glass of poison. But death is not the end for her. Yu Shi entered the third world—the third world between the worlds of life and death. After clearing the entry dungeon, as long as she plays the OE ending of 13 large dungeons, the gods can resolve her deepest obsession. From then on, Yu Shi only had two goals: 1. Clear the oe endings of 13 large dungeons 2. Find the source of that sound. [Main Yu Shi's perspective] The following contains some spoilers, so don't read if you mind! Yu Shi✖️Chang Sheng and many pairs of deputy CPs After Chang Sheng died, he gave almost everything to create this third world. She thought she could walk alone with her past. Until Yu Shi came, this was a war and chaos belonging to Chang Sheng. Why did Yu Shi come? Why did she come in the chaos again? She shouldn't have come. Fantasy Creation✖️Small World God-like [Updates are interrupted in preparation for the exam. Updates will be resumed after the exam is completed]