1girl armor black_shirt black_shorts breastplate brown_eyes brown_hair cellphone clenched_hand collage cropped_torso dagger drawing drinking fingerless_gloves fishnet_thighhighs fishnets full_body gloves head_on_table highres holding holding_pen holding_weapon hood hoodie juice_box knife kobayashi_gen long_scarf looking_at_phone looking_at_viewer looking_up ninja open_mouth pen phone pink_scarf sakamiya_hotaru scarf school_girl_strikers seiza shirt shoes short_shorts shorts sidelocks simple_background sitting smartphone sneakers socks striped striped_socks stuffed_toy thigh_strap thighhighs twintails tying_hair weapon white_hoodie