For people who like me, can't concentrate on one language when someone in one language they understand speaks on top of someone else in another language they un

For people who like me, can't concentrate on one language when someone in one language they understand speaks on top of someone else in another language they understand, here is the same video without the voice-over (so, in japanese): https://www.youtube.com/watch?v=1ti9rFafwTw https://www.youtube.com/watch?v=1ti9rFafwTw