Rumi, 4 years old, lives with her big brother in an apartment at Aramasuo. Since he has become a salaryman and has to go to the office every day, she is bored during the day. Rumi goes to school with her sister Yoko, a fourth grader in elementary school next door. This is the beginning of heartwarming interactions with Yoko's classmates, her teachers, and the people of Aramasou.

1. **Aoi Tsuki no Yoru** (青い月の夜) 2. **Midori no Me** (みどりの目) 3. **Yuki no Hi ni** (雪の日に) 4. **Koori no Hana** (氷の花) 5. **Kagerou** (かげろう)

Part of Akita Shoten's Saishuu Sensou series (not to be confused with Hakusensha's), which consists of the following (13 volumes total): 1. [Juuran](https://www.mangaupdates.com/series.html?id=102013) (十蘭) 2. [Kai (YAMADA Mineko)](https://www.mangaupdates.com/series.html?id=102014) (峡) 3. [Kaze no Chitenshi](https://www.mangaupdates.com/series.html?id=102015) 1 (風の智天使1) 4. Kaze no Chitenshi 2 (風の智天使2) 5. [Saishuu Sensou Densetsu](https://www.mangaupdates.com/series.html?id=37971) 1 (最終戦争伝説1) 6. Saishuu Sensou Densetsu 2 (最終戦争伝説2) 7. Saishuu Sensou Densetsu 3 (最終戦争伝説3) 8. Saishuu Sensou Densetsu 4 (最終戦争伝説4) 9. Saishuu Sensou Densetsu 5 (最終戦争伝説5) 10. Saishuu Sensou Densetsu 6 (最終戦争伝説6) 11. [Walk Don't Run](https://www.mangaupdates.com/series.html?id=102016) (ウォ－ク・ドント・ラン) 12. [Gozen Niji no Oka](https://www.mangaupdates.com/series.html?id=102017) (午前２時の丘) 13. [Chiheisen no Gin no Hoshi](https://www.mangaupdates.com/series.html?id=102018) (地平線の銀の星)