I’m looking for a interstellar BL novel. The scene I remember is the MC found a flyer for hiring caretaker for young children/orphan. The children are different species. One of the children is a mermaid and he is very shy and does not speak and go new others. The MC was hired to work there and later in the book he became a dean. He brought money for the place and updated it. One of the children he is talking care of is an extinct but a very dangerous species, the egg was long dead when it was captured by soldiers so they just gave the egg to his place. The MC is very kind to all the children and the novel gets detailed when he takes care of each child and breaks down there walls around there heart for example the mermaid. The mermaid child was later on found out to be a very noble child that was abandoned by his family and he calls the MC father. Please help me find this novel. Thank you for ur time.
https://www.novelupdates.com/series/cub-raising-association/ 'Cub raising association' i think its this one