There's Hayase Ruriko in the bottom right corner of the desk pic (I think).
It is. This specific arc seems to have been foreshadowing for the most recent arc as of writing. I wonder what other Chekov's guns are hanging above the fireplace...
...Well, that's how things have turned out.Finally found the right time to say it out....Comman...der........Umm......So the soldier I saved back then was you, Commander, huh.