1, the meaning of SP Japanese drama articles. SP is longer than an episode of a series, usually 90 minutes to two hours. SP is a complete story, which is usually played in the spare time of receiving files every season. Most SP are foreign articles, prequels or follow-ups of hit dramas.

2. OVA (original video animation thin thin) means "original animated video", which is a concept opposite to cinema animation and TV animation, that is, it is not shown on TV or cinema, but sold in limited quantities in the form of videotapes and DVDs, with special labels and will not be reprinted. Compared with cinema animation and TV animation, OVA animation is only distributed and sold in stores. The picture is better than the TV version, and the grading system is not as strict as that of film and television. The length of the egg is unlimited, and it is relatively free. An animation takes about 40-50 minutes and a short film takes about 20-30 minutes.