Here you can find all the dramas that aired in 2020 and already finished airing:

Released in December (will be added soon)
Released in November (will be added soon)
Released in October (will be added soon)
Released in September (will be added soon)
Released in August (will be added soon)
Released in July (will be added soon)
Released in June (will be added soon)
Released in May (will be added soon)
Released in April (will be added soon)
Released in March (will be added soon)
Released in February (will be added soon)
Released in January (will be added soon)