kuga tsukasa, original, commentary request, 1boy, animal, binder clip, brown hair, cat, closed mouth, cup, desk, from side, grey eyes, grey pants, hair between eyes, leaning forward, long sleeves, looking at viewer, looking to the side, male focus, mug, pants, pinstripe pants, pinstripe pattern, scissors, shirt, signature, sitting, sleeves past wrists, smile, solo, watermark, web address, yellow shirt