The number of episodes in season 1 is not fixed. It could be as few as 3 or as many as 25. It all depends on the creators' plans and the requirements of the network or streaming platform airing it.
The first season of the Sword and Sword God Realm had a total of 13 episodes that covered the content of the first volume of the novel. The last episode of the first season returned to the second chapter of the novel,"The Lost Paradise."
There was some inconsistent information regarding the number of episodes of " Celebrating Years Season 2 ". In documents [1],[2], and [3], it was mentioned that the second season of " Celebrating Years " had a total of 30 episodes. However, according to the document [4], the second season of " Celebrating Years " had a total of 45 episodes. Due to the existence of inconsistent information, it was impossible to determine how many episodes there were in the second season of " Celebrating Years." Therefore, it was impossible to determine how many episodes there were in the second season of " Celebrating Years ".