1girl blonde_hair blush chocolate garter_straps hair_ribbon heterochromia highres holding hoshikawa_sara long_sleeves looking_at_viewer neck_ribbon nijisanji open_mouth orange_eyes red_eyes ribbon school_uniform shizuku_(shizukusushi) sitting sleeves_past_wrists star_(symbol) thigh_strap thighhighs twintails valentine virtual_youtuber