A Mother "Suspects" (if not "Knows") that something might happen on Saori's post-grad trip. One might wonder whether at the *a-hem* 'climactic moment' Mom suddenly felt "a great disturbance in the Force"?
Guess we might need yet another sequel to find out, eh? 😉ðŸ˜ðŸ˜‰ðŸ˜ðŸ˜‰ðŸ˜
Briefly, Kei & Saori's relationship has escalated to the point where they're off together on a trip. Some cute and charming lovey-dovey moments ensue, assuming the reader is into that sort of thing. In the end, Saori's Mom may or may not know that "something's going on", but perhaps one must wait for the next chapter to find out.
If you're one for vanilla-based lovey-dovey sex, you won't go wrong with this one, or its series for that matter.
https://www.fakku.net/collections/post-lesson-treats