I'm looking for the original source this Yumi Kazama scene comes from. Can you help?
https://vjav.com/videos/67614/best-japanese-girl-yumi-kazama-in-incredible-solo-girl-big-tits-jav-video78786/?promo=14036
[DVDES-891] Busty Aunt's Adulterous Lifestyle With Her Bratty Virgin Nephew 3 - Kaho Kasumi (2013)
[VRTM-332] You Can Fuck As Much As You Like 3 - Kaho Shibuya, Yuri Nikaido, Rina Ayana (2018)
[DASD-622] I'm Home - She Came Buck Suddenly, Her Entire Body Covered With Tattoo Art - Sui Mizumori (2019)
[ATID-443] I Entered Into Sexual Relations With My Little Sister-In-Law - Eimi Fukada (2020)
If it's an srt file, try opening it with Aegisub. If Chinese characters are then displayed by Aegisub, you can export the file and you now have a new srt file with Chinese characters.