A series of survival-themed manga for boys. - Title: Ai's Survival 1 - Title: Ai's Survival 2 - Title: Skyscraper Survival 1 - Title: Skyscraper Survival 2 - Series Name: Survival - Volumes: 1, 2 - Condition: Good Please check the condition of the items in the photos. I bought them new and read them once or twice. Please understand that these are used items. Please refrain from purchasing if you are sensitive to the condition of used items. #SurvivalSeries #KagakuruBOOK #SurvivalForSale4