This was good. Really good. It's post-S5 D/C curtain!fic, and if that turns your crank you should definitely read this. I noticed four or five homonyns in the very last part. Don't know if that part was just less picked over, or if I missed earlier typos, but I didn't care by then. Cas becomes a theo prof, which is a boring choice, but not as boring as english teacher, so I can overlook it. Anyway, I thought this was very well done, an excellent example of being sweet without falling into saccharine. The plot and characterizations both made sense. It's just a great, gentle, heart-warming read.