The file string you provided looks like it comes from a third-party download site. When searching for files like this:
Sites hosting files with long, hyphenated names often contain intrusive ads or malware. gateanime-com-mha-04-ardub-1080fhd-mp4
If you're accessing unofficial streaming sites, a VPN and an ad-blocker are highly recommended. My Hero Academia [English Dub] 1x4 REACTION!! "Start Line" The file string you provided looks like it
Episode 4 is titled "Start Line" . It follows Izuku Midoriya as he takes the U.A. High School Entrance Exam. My Hero Academia [English Dub] 1x4 REACTION
You can also find the series on platforms like Hulu (English regions) or HIDIVE , though language availability varies by region. ⚠️ A Note on File Safety
My Hero Academia [English Dub] 1x4 REACTION!! "Start Line" - YouTube. This content isn't available. YouTube·Blind Wave HIDIVE | Stream Anime Simulcasts and Dubs
The filename gateanime-com-mha-04-ardub-1080fhd-mp4 refers to (MHA) Episode 4, featuring an Arabic Dub (ArDub) in 1080p Full HD resolution, originally hosted on the GateAnime website.