I have bought all the comic books at the same time several times.
It's usually a birthday present for my daughters.
"Banana fish"
"The Life of Professor Yanagisawa, Genius"
"Him and Her situation"
And, well, the list goes on and on.
I am not so sure that I like all of those comics that I have purchased.
For example, "Him and Her situation" was well received by my family, except for me.
However, I had seen Anno's anime "Him and Her situation", so I was expecting the positive feeling, and I could not accept the comics.
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For the past two years, I've been watching the anime Fruits Basket (2019).
Watching this anime broadcast, I found the new interpretation (creation) of the twelve zodiac stories in this comic so interesting that I am considering buying all the volumes at once.
I did some research and found some great stuff.
"30 million copies in circulation worldwide"
I think that this may become a classic work.