I don't have a problem with such "Weeb" story , in fact some anime and manga are way better than Western show, comic, or novel. What I dislike it when you're a weeb so ypu gotta show it by sprinkling random Japanese words into it. Sorry if you get it wrong
It would be weird if:
Hildegard the gallant warrior looked up to the sky, her fallen nakama now are already in Valhalla.
(A/N "Nakama" means "Comrade in Japanese)
Or in an intense battle scene, the enemy talk in Google translate Japanese (this is literally use GT, don't correct me):
"Fufufu!" she gloated over my stabbed back. "Omae o korosu no wa totemo kantandesu!"
Of course I won't quote the actual work, but I've already encountered many Wattpad LN like that. It's's just so off and cringy that it breaks immersion!
You don't write like that so don't worry