Little Info about Tamayo Akiyama

Tamayo Akiyama (秋山 たまよ, Akiyama Tamayo) (born November 28, 1966 in Ōsaka) a Japanese shōjo manga author and artist. She was a former member of CLAMP.

Akiyama has also done illustrations for three novels (Kyokutō Shōnen and Komaranu mae no kami da nomi by Kobayashi Megumi and Watashi no Kare wa Hamster by Edō Kei) and illustrations for a CD (Psycho Sound Machine Drama by Ohara Mariko).

I have Cluster, one of her creation. It's fun to read, but I wondered why the story is made me bit confused?