In the plantgirl game over scene, the name is Zwei instead of Kana.
If you play Witch Dungeon and you give a water flask to a wrong San in order to discover a game over scene (Because I actually chose the right one in my first try since I knew that "san" means "three". :-3), you will see that in this scene, Kana's name is Zwei instead of Kana. Play the game and you will see.