4girls analog_clock animated black_hair blue_reflection_(series) blue_reflection_tie brown_hair chair chalkboard classroom clock copyright_name desk hoshizaki_ao indoors kinjou_yuki long_hair looking_at_another looking_away miyauchi_rena multiple_girls paper_airplane pixel_art second-party_source short_hair sitting standing utsubo_kokoro video wanpaku_pixels
4girls analog_clock black_hair brown_hair chair chalkboard classroom clock copyright_name desk indoors long_hair looking_at_another looking_away multiple_girls paper_airplane pixel_art short_hair sitting standing
hoshizaki_ao kinjou_yuki miyauchi_rena utsubo_kokoro
blue_reflection_(series) blue_reflection_tie
animated second-party_source video