ภารกิจฟื้นฟูประชากร [Date Roku] Dansei ga Kyokutan ni Sukunai Kono Sekai de wa, Seishi wa Kichou na Shigen desu. | In a World Where Men Are Scarce, Sperm Is a Precious Resource. - Dansei ga Kyokutan ni Sukunai Kono Sekai de wa, Seishi wa Kichou na Shigen desu.
