1boy, 2others, ahoge, artist name, black gloves, black shirt, book, book stack, cable, cape, compression shirt, elbow gloves, fingerless gloves, gem, gloves, gold trim, green cape, green eyes, green gemstone, grey hair, hair over one eye, hand up, head tilt, holding, holding book, looking at viewer, male focus, multiple others, parted bangs, parted lips, shirt, short hair, shoulder cape, sidelocks, signature, sleeveless, sleeveless shirt, solo focus, sparkle, swept bangs, upper body