The critical word here is While convenience in English often implies ease and lack of hassle, in Japanese, tsugou refers to the alignment of schedules and personal logistics. In a country famous for its punishing work hours (even with recent reforms), long commutes, and rigid social structures, tsugou is a matter of survival.
They talked for two hours. About her mother, a retired piano teacher who still called every Sunday. About Akira’s own father, who had died five years ago and whom he never mentioned to anyone. About how loneliness sometimes disguised itself as efficiency. Tsugou no Yoi Sexfriend