The artist usually publishes english translations of his videos on his patreon, but he quite clearly uses google translate or some shit like that because they're not accurate. Take for example this video. I don't even know if the characters in this video are actually related cause the guy uses the word "onee-san" or "onee-chan" in most of his video titles, which is then translated to "sister" but it can also mean "lady" or "older woman" in certain cases.