Japanese: 夕張30歳
Artist : Yano Toshinori
Kantai Collection doujin about typical life of mature Kancolle shipgirls, mainly focused on Yuubari. Many shipgirls in this series already had their family and child (Japan Maritime Self-Defense Force ships that shared the same name as World War II era warships.)
There's another series with a similar theme drawn by Ichifuji Nitaka.
