I really hope this isn't the end of their story, even if it's the end of this comic proper.
BTW, on page 15, is it really supposed to be "leave out my old age" rather than "live out my old age"?
b... but... in the other series colette lived with them..... a.. and they kept it a secret.... and.. and.. colette is still with them ;_;
Take note that the flashback in the middle of this chapter explicitly says that the rest of the chapter takes place about a year after the previous one. Maybe those stories or their analogues happened during that gap.