mochizuki riku girl long hair looking at viewer blush animal ears tail blue eyes animal ear fluff breasts hair ornament very long hair closed mouth cat ears red eyes virtual youtuber sitting dress bare shoulders collarbone bow grey hair cat tail neko frills white dress heterochromia red bow thigh strap medium breasts indie virtual youtuber wariza cleavage tail ornament wrist cuffs tail bow hairpin :| expression multiple hairpins frilled wrist cuffs white wrist cuffs kanzaki ririka