I know Komatsu is one of Japanese SF 'fathers', but this "一宇宙人のみた太平洋戦争" is not very good, and even quite problematic. The short short stories are quite meh, not funny or humorous or original, and the longer ones are also easily forgotten. And that is without analyzing the longest one, that includes the "一宇宙人のみた太平洋戦争" part that gives this book a title, with its talk about skin color, races, Japan's role in Second World War...
3/10
(Japanese; original)