OK, I just finished reading the manga and what other thing I can do than writing a review.
I would like to mention what I like about it first, the art is great it's not hard to look at and it looks like any other good manga art. It's clean and easy to read with the format so I got no complain on that. 9/10.
Moving on to character, the characters have a shallow yet easy to memorize and grasp. Most of the time with manga that is short like this, the artist tend to try to go too deep on the characters that it's suffocating and
hard to grasp. So, I think the artist did a good job on this. 9/10
Now on the story, I shouldn't have expected much depth from a 10 chapters manga because that is what dissatisfy me the most from reading it. It's a bit cliche that when you start reading it you can imagine the ending a little. So, try your best to not try to imagine it. On the other hand, the artist tried to point out what's what and what's not, like pointing that if the current event different than the one before time leap or not. It's really helpful so that's one thing. Lastly, I would say if the chapters are 20 or 30, this manga would be something really exciting and great because that way, the pace wouldn't be hastened and the artist can go a little bit deeper with the story. Sadly, it's only 10 and I am quite disappointed in that. 7/10
Tip for everyone that wants or going to read this manga, do NOT expect too much and enjoy it as it is without any expectation.