Maybe someone knows a good birthday present for someone who likes anime and has an Xbox but unfortunately the present can only go up to 50 euro thanks for the answer
Give her a collectible figure, which you can best get in the game shop or an Xbox game that goes in the direction she likes
An anime character
Mangas or as most say an anime character.
If you want to buy something for the Xbox, a game or an Xbox live card might be good.
Anime figure
Xbox game
Dakimakura
Mangas
Blu-rays from his favorite anime
General merch