Atsumu "Yukiatsu" Matsuyuki (松雪 集, Matsuyuki Atsumu) is the main antagonist in the anime/manga series, Anohana: The Flower We Saw That Day. He is a member of the Super Peace Busters and a childhood friend of Jinta "Jintan" Yadomi, Naruko "Anaru" Anjou, Chiriko "Tsuruko" Tsurumi, Tetsudō "Poppo" Hisakawa and Meiko "Menma" Honma.
