Irozuku Subs is an incredible Japanese drama fansubber with an ever-increasing body of work. I love their subtitles, but also appreciate the respect they show official streaming platforms when a popular drama is picked up that way. They've actually stopped subbing dramas once VIKI has approved it (like Black Cinderella and Peanut Butter Sandwich), and I respect them for that choice since it shows a deeper appreciation of copyright laws and not wanting to overstep boundaries and also saving their energy for other projects. They even take on smaller, lesser-known, or publicized work which is AWESOME because these are usually the dramas that wouldn't get subbed otherwise.
🌸 Website: Irozuku Subs
🌸 Twitter: @irozukusubs
They offer hardsub downloads for anyone visiting their site, and softsubs to be joined with raw video files to anyone monetarily supporting them on Patreon. Fans can also buy them individual "coffee" which is a really great way to support your favorite fansubbers even if you don't have the funds to support them every month with a Patreon commitment.