The relationship between creation and being created. According to the official forum of the game Ruins Library, A created Angela, so the relationship between Angela and A in Ruins Library is the relationship between creation and creation. A hopes that Angela can take care of him when he is alone like Carmen, but for some reason, A denies Angela's existence at birth and doesn't even want to look at her because she is not the real Carmen. Ruins Library is a card strategy game produced and distributed by ProjectMoon. The game was officially released on May 15, 2020. This plot inherits the previous work "Brain Leaf Company". On the ruins, a force called "library" is quietly rising.