In the game, Solanum nigrum has a special feeling for Jing Tian. She once waited for Jing Tian for 1000 years because of his promise, and repeatedly said in the game that she had more affection for Jing Tian than ordinary brothers and sisters. However, this feeling is not a brotherly fetish, but a deep emotional entanglement, including trust, dependence, admiration and other emotions.
Therefore, it can be said that Solanum nigrum has special feelings for Sedum, but it cannot be simply defined as a brother fetish.