The male lead and the female lead are childhood sweethearts in anime or novels.

Answer 1

There were many animes and novels where the male and female leads were childhood sweethearts, such as:

1. Your Name. (Your Name): This is an animated film directed by Makoto Shinkai. It tells the story of what happens after the male and female protagonists swap bodies. They had known each other since they were young and had deep feelings for each other.

2. The Tower of God (The Flower of the Mountains): This is a Japanese novel about a young man and a young woman who meet in a mysterious tower and explore it together. Their relationship as childhood sweethearts deepened their relationship.

3. Natsume's Friend's Tent (Takashi Natsume): This is a Japanese anime that tells the story of Takashi Natsume and his monster friends. Natsume Takashi and the monster Natsume Reiko had a deep relationship and they were childhood sweethearts.

4 Sword Art Online: This is a Japanese novel and anime that tells the story of people entering the virtual reality game Sword Art Online. The protagonist Kirito and his game girlfriend Alice had a deep relationship and they were childhood sweethearts.

These stories all described the childhood relationship between the male and female leads, and they all had deep emotional entanglements.