Me too. Though, I do like series where the couple is already a couple in the start or become one in the first chapter. Like Yandere Kanojo or Bonnouji.
Chapter 13 is the continuation of chapter 2..
Chapter 14 is the continuation of chapter 5..
Chapter 18 is the continuation of chapter 8..
Chapter 19 is the continuation of chapter 6..
Katori from chapter 12 is actually Gatori from chapter 3, this one is not really a continuation tho..