NISA investments and an AI bubble burst

Let me start of by saying that I'm not a savy investor, or looking to be some kind of day trader. I'm very happy to just keep investing monthly and checking on my account like once a year. Lately though I've been thinking about my NISA investment and how it will be affected by the AI bubble bursting (if you are more positive than me you can think of this as a hypothetical).

Does anyone know how much NISA would be affected by a potential crash in the tech stocks driving the American markets now? Could a crash in AI stocks cause my investments lasting harm? I'm wondering if it's worthwhile to pause monthly investments and/or take my money out. Basically, I don't want to be set back 5 years because AI has been overinvested in.

EDIT: Investment through NISA is eMaxis Slim S&P 500. I have about 1.6million yen in, and am currently putting about 30,000 yen in a month. Please excuse my ignorance.

by 1sanpedro1