Short time skip after the last chapter. The kouhais are back to America (where they continue with their swinging), both main couples have graduated from university and finally everything is ready for the wedding between Yukari and Seiji.

Time for a last swap before the wedding bells, where maybe the big development is that -a bit reluctantly- Seiji finally admits that he's enjoying their current swinging relationship.

Unless the author plan to milks it, looks like the end is very close.

https://www.dlsite.com/books/author/=/author_id/AJ022758
https://book.dmm.co.jp/series/?floor=Abook&series_id=903439
https://www.amazon.co.jp/gp/product/B085G2DL8B

good 这个真棒

Base +1, MelmothTheWanderer +11

black hair woman said she only love her boyfriend/fiance while give heart eyes to other dude dick fucking her brain out, light hair woman cry when said only black hair woman can love black hair dude and congratulation their marriage to black hair dude.
what a mess!

Base +8, xxMemeKing420xx +6, 44inf +6

happy wedding, I guess?

Base +6, xxMemeKing420xx +6, MelmothTheWanderer +11, georgenorthern +2

I am sure the Orange hair (maybe is this colour) guy going to do something in wedding party。。

Base +6

This is a very good story

Base +6