are there any chapter of this manga after 70 😕 5r1q1n

Since your topic is general I wanted to ask a question.
How much does the Manga differ from the Anime ?
The Anime was pretty short and considering this is a 7 Vol Ongoing series I am sure there are quite a lot of differences.

I am guessing the ending isn't the same since the series is still ongoing.

but the probleme is there are 2 sequels melty blood and the first one still hasn't finished if it's already finished then why stopping at volume
7