Main story (season 2) ended at chapter 43. This story is already complete. The author decided to release a season 3 for side stories, Side Story 1 is also complete. The author wanted to release more so there are new chapters again.
Also next time please ask in a polite manner. (〜 ̄△ ̄)〜
The last chapter said 'To be continue, so why this story already complete??