After the first war, Remus realizes his chances of working in the wizarding world are slim, and his wand just reminds him of how James, Lily, and Peter died. To escape this world of pain, Remus attends med school, posing as a Muggle and going by his middle name: John. A story of the missing 12 years of Remus's life . . . in which he became John Watson. Guys, seriously, it all fits.