Ichigatsu ni wa Christmas  

1月にはChristmas, Christmas in January, 1-gatsu ni wa Christmas

Nobumasa is a young man who part-time works at a shoe store and meets mizuki, a female customer whose family background has caused her to be wary of people. at the same time, nobumasa is unaware that seiko, another girl, harbors feelings for him but struggles to convey them.