Waiting online for answers
Gintoki: Ginko (The episode where Shinpachi was deceived by the cat-eared girl was called Gin no Samurai, but it was invented by Kozaru)
Kagura: Kagura=Jasant ( Kagura = Gasante)
Shinpachi: Laoba (the cat-eared girl is the train attendant)
Kasura: Fruit Platter Samurai G (there are also subtitles translated as Fruit Guest) Ji Samurai G)
Kondo: Fruit Little OO Samurai G
Hijikata: Senior (although I really want to complain, but 14 is indeed called this in monkey hunter, the cat-eared girl chapter is Mayonnaise Samurai)
Okita: Junior (...complains about incompetence)