SFLV Season 4 English SUB!!
One of my online mutuals took it upon himself to translate and subtitle Season 4 in English. It was done entirely solo with (I believe) free and accessible software (Capcut, Google Translate, etc.), so the dialogue may be a tad stiff/awkward or inaccurate at times, although that doesn't seem to be too much of a problem. Either way, here is the channel where they have all of the episodes posted with subs!