Wow, this is amazing!! As others have said, I love the way you weave in and out of the present, so that we can gradually see how their relationship developed. I love the concept of being switched at birth and then switched back and how neither really felt at home with their "real" families. I love that they are complete opposites -- Nino the shut-in and Jun the public personality. And I love the feel of the narration, like I can really feel Jun's anxiety and insecurity and, conversely, how comfortable he is with Nino.

Seriously, anon, this is beautiful. Thank you so much for sharing!! ♥