From my memory, it seems to be based on a book from the Omae Umasou Da Na series, a Japanese story book series of a T-Rex like dinosaur who becomes the father figure of two (or more) hatchlings. It seems to be based on the first book, as the father figure tries to eat a new born who imprints on him, leading to the father figure to teach the child how to survive, and eventually leaving the child. If anyone is interested, the series have 3 movie adaptations, all wonderfully made and I love very much. If someone reads or watches it, please let me know how it was for you











The entire manga centers on a male character and a dungeon core that manifests in the shape of a young girl. The male character has also masturbated in the same room as the dungeon core sleeps, the hot springs being primarily used by women, and the male character actively spies on people in the hot springs. In chapter 4, paraphrased, the dungeon core develops senses and desires based on the contracted human's actions, and it is suggested that the male character has masturbated enough to lead to the again, young girl manifestation of the dungeon core, to feel something. I will be dropping this and not coming back. I read this up to chapter 4 in hopes of things improving, but it does not seem to be likely to happen. I am surprised this is not tagged by Mangago under Ecchi or Adult.