[ spoiler ]

Just saw there are 2 chapters! I love how (i thought) it concluded but to actually find out there was more makes me even happier! For someone who's been reading this since 2011 i have to say i'm very happy with the missing chapters xD anyway sPOILER
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Think it's 2 chapters of Kazuma returning from where he's teaching! In one chapter they get very close & lots of skinship ; ; truly a development from the series to show their relationship as husband and wife!

The 2nd one is spent at the fireworkd festival and it seems that Kazuma has been wanting to have some time alone with her. Also get this- Fumino's last name in uni is Ojiro hehehehehe so they bump into some of her classmates in the same department and Kazuma comes back and like tHANK U FOR TAKIN CARE OF MY WIFE and takes her away bec they're inviting her to go with them.

And fINALLY. They drop the honorifics. Fumino fINALLY CALLS HIM "Kazuma-san" OH GOD AFTER 7 LONG YEARS OF WAITING. THANK GOD.

And the cherry on top? They finally make love uhuhuhu my hEART I CAN REST IN PEACE FINALLY.