If you are simply looking for downloadable MP4 videos about Japanese culture or youth for a classroom or presentation:

If you are researching the lifestyle or societal behaviors of Japanese teenagers:

: This is a well-documented psychological and cultural phenomenon in Japan where young teens develop grandiose delusions. You can read peer-reviewed analyses such as the study on PMC NIH . 馃幀 Educational & Cultural Videos

: Search for papers detailing the aesthetics of Harajuku, Shibuya, and the "Gal" (Gyaru) or "Kawaii" subcultures .

: Look up papers on the live-streaming app TwitCasting , which is exceptionally popular among Japanese youth for sharing daily life and self-expression .

: Search Google Scholar for terms like "Japanese youth mobile video consumption" or "smartphones and Japanese teenage identity." 馃彨 Japanese Youth Culture & Society

Because the query contains terms commonly associated with online file sharing, internet memes, and video files, it may yield unsafe, misleading, or adult results depending on where you search.

If you are researching how Japanese teenagers use video formats and smartphones: