maorin, hibari kyouya, rokudou mukuro, katekyo hitman reborn!, magnet (vocaloid), vocaloid, 00s, 2boys, black hair, bug, butterfly, butterfly hair ornament, couple, crossover, eye contact, face-to-face, grey eyes, hair ornament, headphones, heterochromia, insect, long hair, looking at another, male focus, multiple boys, music, nail polish, open mouth, ponytail, red eyes, school uniform, short hair, simple background, singing, teeth, yaoi