"Aria Lissen is one of the main characters in the Japanese manga ""I Am a Child of This House"". She is a young girl who was rescued by the protagonist, Sousuke, and his family. Aria is a very sweet and kind-hearted girl who is always eager to help others.

At the beginning of the story, Aria is depicted as being a very shy and timid girl. She is afraid of being alone and often seeks comfort from the other members of Sousuke's family. Despite her cautious nature, Aria has a strong sense of justice and is not afraid to stand up for what she believes in.

Throughout the story, Aria grows close to Sousuke's family and works hard to help out around the house. She is particularly fond of cooking and often prepares meals for the family. Aria's cooking is highly praised by everyone who tastes it, and she quickly becomes known as the family's ""little chef"".

As the story progresses, Aria's past begins to come to light. It is revealed that she was abandoned by her parents at a very young age and has since lived a difficult life on the streets. Despite her troubled past, Aria remains optimistic and continues to work towards a better future for herself and those around her.

As the story reaches its climax, Aria is faced with a difficult decision. She is offered the chance to leave Sousuke's family and start a new life with a wealthy benefactor. However, Aria ultimately decides to stay with the family who has taken her in and cared for her.

In conclusion, Aria Lissen is a kind-hearted and hardworking young girl who has endured a difficult past. She is deeply devoted to the family who has taken her in, and she is determined to build a better future for herself and her loved ones. Aria is a beloved character in the manga, and her kindness and determination serve as an inspiration for readers of all ages."