Light Novel Other Size Romance novel I can't accept a second marriage proposal! Fairy kiss

Product description ※Please note that product information is not in full comprehensive meaning because of the machine translation.

People of the royal family were asked to marry Crown Prince Arthur, who had such a sticky blood line that they would continue to love someone whom they fell in love with at first sight. At the age of five, Lucia became the Crown Prince's fiancé. Every day he had his hands on Arthur, who was so eager to express his affection, but one day Arthur was involved in an accident on the frontier and lost his memory. He completely forgot about Lucia and came back to the castle with a beautiful girl who saved his life? Lucia was shocked when he saw how happy they were, and he decided to declare the cancellation of the engagement?