Encounter. the Kingdom of Demons (Three Volumes)

What's going on? After inheriting a dilapidated ancestral house, you are forced to sign a contract with a silver-haired goblin. What kind of goblin apartment do you become the heir to? The idol who was worshiped by all the people with her natural sound made everyone faint when she sang; on the way home from work, she was kidnapped by a tall and handsome man and brought back to be a transformation instructor; the new transfer student was too beautiful to be considered human, but why did he keep leaning towards her? You, you, you... Aren't you all goblins? Oh my God, she would be miserable if she had a narcissistic and arrogant guardian fairy. The rest should not trouble her!