* One year has passed, which equals ten years in the human world, when the three angelic siblings are to go on a mission in the human world, they are to meet with the officials of the angelic government to celebrate the angelic swear. they stood in a circle of magic and on their hands rise, swore a deity oath of allegiance to the angelic stone of the history of the first angel who created the angels world. According to the five commandments. first, they couldn't love the human. Second, can not be used magic beyond the limits of human nature. Third, to make the chosen person to be happy, but not to have love for that person, if the abuser is eliminated like an angel. Fourth, to be able to unite, protect and be honest to selected individuals who make their wishes come true. Fifth, after completing the mission, they must return before the moon pointer returns to the 11th pointer. If an angel violates all of these vows, they will be severely punished.
* As they drank the pure milk with the drops of blood of the minister of angels, their angel wings appear with lightning like diamonds, and the voice of their mother golden bird, flew above them and dropped the rose petals to celebrate them as adult angels. Nico took the stage to receive a letter from Madam Angel Victoria, stating that the letter contains a photo and background of the person assigned to them to complete the mission. and she also received a watch necklace to confirm the timeline, as they had three months to complete their assignment in the human realm. Back from the stage, Nico opened the letter to their siblings to see who they were on mission with. Maria was a little surprised when she remembered that the man was a fisherman whom she had helped during the previous incident. Julia was able to read the biography of the man, his name is Rex, who was born into an aristocratic family with a father who was a chief naval officer and a mother who was the royal younger sister of the king.
* The right thing to do is to disguise themselves as his mother's cousin in order to live with him and guide Rex to fulfill his dream, especially for Rex to open his mind and receive love again. because Rex didn't have the warmth of family from a young age. The three of them must have stayed with the Rex for a while in a villa near the sea. Rex now lives alone and very depressed. They must therefore fulfill their role of caregivers of Rex and make him dare to face society again. After reading the information, the three of them carried their suitcases and entered the Gate of Human Realms, with a group of angels praying to open the gate.
* Rex looks at the peals hair clip he remembers before passing out in an accident at sea. He saw that there was a shadow of a woman who helped him, and this accident happened over 10 years ago. when he was only 15, he wanted to meet his father, who had to move to live in another area with his mother. so he decided to meet them the last time. but when he just has rowing boat, the sky turns to darkness and there is a strong gust of wind hitting his boat, causing him to fall into the sea which cannot meet his parents. Before his mother left, she left a lot of treasures and servants to take care of him, but in recent years he has stopped working all his maids, leaving only the housekeeper, who always came cleaning the house and cooking for him. Because these maids who are not honest and want to sleep with him, he does not like they acted like this to him. However, he did not graduate from high school when his parents left him, he has a special brain different from that of the average person and the combat art material he trained from the mysterious teacher.
* Rex preparing to return to bed, the bell rang outside the house as he walked to open the door with his messy hair and black pajamas. For a while, he didn't have time to take care of himself because he was looking for the kind of pearly energy that stuck to the skin on his chest. The stone appeared after he woke up and discovered that he had been rescued and taken to hospital. Doctors also said the stone could not be removed surgically because it was attached with his heart. Rex is eagerly awaiting three girls who introduced themselves as his cousins. But he doesn't seem to care and believe what they said because he wants to live alone in peace.
* As he was about to close the door, Nico grabbed the door with her hand, trying to smile at him, and handed him his mother's ring. He remembers the ring, it must have belonged to his clan representative. While he was busy checking the ring, Maria, who was waiting longer and feeling her ankles sore, walked touching his shoulder to the house and Julia followed Maria saying hello brother Rex. Nico timidly felt that the character of Maria was too bad. Rex didn't say anything, just invited Nico to his house. He talked about the house rules to his cousins had to follow and then took them to their restroom, where he strictly forbade them not to enter the locked room, which was his parents' bedroom. Nico and Julia nodded understanding, different from Maria who was not paying attention to Rex's speech.
* At dinner time, Nico, Julia and Maria went downstairs with the thin dress they always wore at home. Rex, who was choking when drinking water as he saw his cousins wearing a dress veil that could only see her panties. He told them to dress properly when they were with him, and he got up from the dining table and returned to his room, much to the surprise of the three sisters. Maria whispered from behind that Rex is the hardest person to understand. then she went to eat her dinner and she didn't cared anything like before. Rex, when he finished reading a book and walked over to close the window, suddenly saw Maria sitting alone swinging in front of the house, staring at the stars in the sky. Seeing this he thought that Maria was a stubborn girl that she was still wearing a thin dress did not make her secure and because he thought he was her brother he left his room, walked toward to her, then he took his coats covering Maria's shoulder. Maria looked at Rex and she smiled gratefully at him for kissing Rex on the cheek like she had for her sister. But it made Rex very shy with the red face, he tried to change the subject by telling Maria to go back to her room because the weather was getting colder. When they got home, Julia was looking at them clearly through her window.