The Doomsday House Girl Cultivating Immortality

Strong female characters. Mainly about growth, less emotional drama. The heroine's character is a bit cowardly in the early stages and she has no fighting spirit. She has a homebody personality, can sit but never stand, has negative communication skills, and has a positive outlook on life. It will grow and change later. The love line is simple and not too complicated. Childish children go away to cultivate themselves, but they cannot return when they are old. There are thousands of tombs in the immortal family, but there are no ashes in the tombs. One sentence introduction: The doomsday otaku is centered on scientific theory and has a development perspective on defense abilities to achieve the goal of revenge and hegemony. Literary version: The black hand hidden behind the scenes controls the truth of everything. Will Zhaoyue, who has the memory of her past life, still be a coward and let the mermaid be eaten?