Yaichi Origuchi's uneventful day is interrupted by a big, burly foreigner who shows up at his front door and begins to hug him. The man introduces himself as Mike Flanagan, and Yaichi quickly discovers that Mike is the widower of Ryouji, his younger twin brother. Since Ryouji left for Canada a decade ago, Yaichi heard nothing about him other than he married a foreigner and passed away the month before.

While Yaichi is apprehensive about the whole situation, his young daughter Kana is absolutely thrilled at the idea of having a gay Canadian uncle. Kana's lack of understanding of Japanese societal views on homosexuality cause Yaichi to reflect on his own preconceived notions. And as Mike continues to stay with the family, Yaichi gradually learns more about his brother-in-law, and he recalls his own past with Ryouji.