深夜の新幹線に忘れた楽器の行方

Music student Ren falls asleep on the last Shinkansen from Nagoya and wakes up at Shin-Yokohama with an empty overhead rack — now he must track down his rented viola before his 9 a.m. lesson, aided by a fast-typing classmate, a very polite panicking shop owner, and a stranger who did one small kind thing.