Noriko Sonozaki is a part of this ending sequence, which is of particular note as she’s one of the overseers of the kiznaiver system rather than an unwilling participant in the social experiment. Her flowers resemble carnations at first glance, but are later revealed as a bouquet of white, green, and orange roses, more formally arranged than any of the other flowers shown.
While her manner is dour and serious, Sonozaki’s flower bouquet is overwhelmingly cheery by most interpretations of rose colors. White represents purity and innocence — often used in wedding arrangements to symbolize a new beginning — while orange stands for excitement and passion. Should orange be interpreted as a yellow color, the meaning changes slightly to a joyful friendship. Lastly, green, which unlike blue is a color that exists naturally although many are dyed, is said to invite renewal and rejuvenation of spirit. Together, her flowers herald a new path in life and new relationships. This is an interesting contrast with her role in bringing this group of kiznaivers together, since they are not presumably the first group of kiznaivers and this is another attempt at attaining a specific bond that she alludes to during her closing speech in the series’ third episode.