I was taught a high-quality animated YouTube channel called the Bible Project.
He explains each Bible letter in an easy-to-understand and systematically beautiful way. It seems that it was originally made in English-speaking countries, but currently about 10 Japanese versions are available.
Watching it in conjunction with Bible reading will help you understand it. It is also recommended for Sunday school, Bible study and investigators.
Tank you for listening to the drama Bible to hear and great content!