Here is Serendipity chapter 29 & 30. All chapters are in Mangahere.
http://www.mangahere.co/manga/serendipity/
But their upload update is slow, so here is download link:
http://www.mediafire.com/file/fiqsvs18a03dsmr/29.zip
http://www.mediafire.com/file/rnv0eeunloke1ih/30.zip