Collection of short stories, from 1979-1995. 
1. SOS Dai Tokyo Tankentai 
2. RUN 
3. SPEED 
3. Neko wa Yoku Asagata ni Kaette Kuru 
4. Abunai! Seito Kaichou 
5. Houmonsha 
6. Sun Burgs Hill No Omoide 
7. Eiyou Manten Episode I 
8. Eiyou Manten Episode II 
9. Madorosu-kun 
10. Tokoton Sore Made-kun 
11. Nichijou no Naka no Monogatari 
12. Manjuu Kowai 
13. Ue wo Muite Arukou 
14. Hi no Youjin

While packing for a move, elementary school student Ryuuhei finds his father's old school notebook detailing a search for a treasure in Tokyo's vast network of underground passages. With his little brother tagging along, he and three friends from an online chat room gather and set out on a quest to find the treasure. What they discover instead is an entire underground community composed of assorted eccentrics, including a senile old soldier still performing a World War II-era mission.
 
(Source: Anime News Network)

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