I'm not sure what the title of the opening theme of the cartoon you're referring to is. If you can provide more information such as the genre of the cartoon or the country, I can try to provide you with a more accurate answer.
In an ancient legend, there was a group of creatures called "vampires". They had an immortal body, but they had to live in the dark and could not live under the sun. Because of their existence, many people were terrified of them, but there were also some people who had a strong interest in them.
One of them was a young girl named Alice. She had heard of the legends of vampires but never thought that she would come into contact with them. However, when she met the vampire Mark, she completely changed her mind.
Mark was a friendly and gentle person. He was not afraid of the sun. On the contrary, he liked to move around on sunny days. Alice was deeply attracted to Mark. She felt that she had finally met someone who truly belonged to her.
However, Mark was not a vampire. He was a human. He told Alice that he did not want to become a vampire because he wanted to be with real humans. He told Alice that he loved Alice and would do anything for her.
Alice was deeply moved. She knew that she had fallen in love with Mark. She told him that she was willing to become a vampire as long as Mark was willing to accompany her through every difficulty.
Hence, they got together. They lived in darkness, but in their hearts, there was always sunshine and warmth. They had helped each other through many difficult times.
In the end, they decided to walk towards the sun and welcome a new day. They told others that they were no longer ordinary humans but the perfect combination of vampires and humans. Their love story had been passed down and became a legendary classic.
" So what if I'm a vampire? As long as I love you." This sentence was not only the vow of love between Alice and Mark, but also the eternal inheritance of their story.
The " White album 2 " and " Sword Art Online " series were also excellent anime works that had the same number of fans as " As long as you say I love you " and " I really want to tell you." Other than that, there were many other exciting anime works such as The Gate of the Fate Stone, The Attacking Giant, Ghost Blade, and so on.
The length of Tricolor Love Story varies. If it's a novel, it might have a certain number of pages. If it's a film or a drama series, the duration would be determined by the production and broadcasting standards. So, it's hard to give an exact length without more specific details.
I don't have the specific length. However, it might range from a few hundred pages to several thousand, depending on how complex and elaborate the tale of unrequited love is.