Chapter 1-5 is the main couple who are adults Chapter 6 shows two side characters who are now in high school so skip that one The only thing you need out of that chapter is that the main characters in the first 5 chapters went overseas to get married
You may feel your favorite manga should be gathered together into distinct categories for your own reference and, now, you can do this with a LIST. After you've created your list or lists, you can proudly recommend them to other manga fans to showcase and share your taste in manga.
Shou Sensei no Ecchi na Himitsu