2boys, arrow_(symbol), atou_haruki, blonde_hair, blood, blood_on_paper, blood_stain, closed_eyes, closed_mouth, emoji, green_shirt, holding, holding_paper, kanou_aogu, lab_coat, long_sleeves, male_focus, multiple_boys, pants, paper, pomakun, saibou_shinkyoku, shirt, short_hair, smile, white_hair, yarn, yarn_ball