nazonaji, oyama mahiro, professor shinonome, nichijou, onii-chan wa oshimai!, commentary, highres, +++, 2girls, :d, bare arms, bare legs, bare shoulders, blonde hair, blue background, blue eyes, brown eyes, colored inner hair, crossover, grey hair, hand on another's head, headpat, lab coat, light blush, looking at another, multicolored hair, multiple girls, necktie, open mouth, pink hair, red necktie, simple background, smile, tank top, trait connection, two-tone hair