rikka (7th costume) (holostars), rikka (holostars), holostars, commentary, highres, untranslatable commentary, 1boy, acoustic guitar, audio cable, cable, coat, drop shadow, from side, guitar, halo, instrument, jewelry, long sleeves, male focus, microphone, microphone stand, official alternate costume, open mouth, pink hair, ring, short hair, sleeves past wrists, solo, upper body, virtual graduation commemoration, virtual youtuber, white coat, white halo, yunomi onlyy