Night Is Short, Walk On Girl (2017) on Netflix

Plot summary

Senpai, a university senior, keeps contriving ever stranger ways to cross the path of a sophomore nicknamed the Girl with Black Hair. He wants to win her heart. She knows nothing of his romantic longings. A group of university students goes out for a night on the town, and circumstances keep the two apart for much of the evening. At a bar, a man named Tōdō makes an advance on the girl, and she punches him. Two patrons, Higuchi and Hanuki, admire her for it and lead her in gate crashing strangers' parties, where she drinks heavily.