big yellow cat (omori), mari (omori), mari (spirit) (omori), sunny (omori), omori, commentary request, highres, spoilers, 1boy, 1girl, 5 mugiko, anniversary, antenna hair, black eyes, black sweater vest, blood, blood on face, bright pupils, brother and sister, closed mouth, collared shirt, copyright name, english text, flower, heterochromia, holding, holding hands, holding instrument, holding violin, instrument, jump rope, knife, knife in chest, looking at viewer, red eyes, shirt, short sleeves, siblings, smile, stab, sweater vest, tulip, violin, white flower, white pupils, white shirt, white tulip