Thanks for the new chapter!
This was actually kind of fun to read in terms of romcom standards. At least something happened.
Little sister actually had a nice call to lure Souta into a potential natsumatsuri date with Asahi and it kinda worked, but unfortunately, Souta is now a chad after moving on (sorta) from that rejection and he just reset his romcom level back down to 1
while Asahi is left developing all by herself