If this is a specific indie work or a story on a platform like FanFiction or Adult Fanfiction , checking the on the specific hosting site is often the best way to see how other readers reacted to that exact update.
The specific formatting ( -Ch.2- -Kun family- ) is highly characteristic of chapters found on or YouTube series titles created by independent content creators. These often feature: My step family -Ch.2- -Kun family-