It was initially made for purely sonar purposes, but we’ve found that it could help sea mammals with their mating
![[Sugar Milk] Gokinjo Furin Club ~Marika & Yuzuha Hen~ (COMIC HOTMILK 2020-10) [Chinese] [沒有漢化] [Digital]](https://data.e-hentai.vip/uploads/173/1730603/poster.jpg "[Sugar Milk] Gokinjo Furin Club ~Marika & Yuzuha Hen~ (COMIC HOTMILK 2020-10) [Chinese] [沒有漢化] [Digital]")
It was initially made for purely sonar purposes, but we’ve found that it could help sea mammals with their mating