koharu rikka, natsuki karin, and hanakuma chifuyu (synthesizer v and 1 more) drawn by hiroya_(hirogaya_02)

3girls absurdres aquarium black_hair black_jacket black_ribbon black_skirt bow bowtie braid bug butterfly caustics cevio double_bun dress_shirt green_eyes green_jacket green_necktie grey_hair grey_sweater hair_bun hair_ribbon hanakuma_chifuyu highres hiroya_(hirogaya_02) jacket koharu_rikka leaning_forward looking_at_another multiple_girls natsuki_karin necktie open_mouth parted_lips pink_bow pink_bowtie purple_bow purple_bowtie red_eyes revision ribbon school_uniform shirt short_hair skirt sturgeon_(fish) sweater synthesizer_v tropical_fish twin_braids twintails white_shirt window