I just have to give it a 10 and nothing else. The plot is simply amazing, fitting exactly into the 13 episodes. It was well written and drawn, nothing like some anime that were trying to fit five hundred billion plots into 13 episodes. Just saying. I enjoyed the bromance feeling between the two characters and the caring feelings they harbored for each other. It is not necessary to ship them or anything to feel their caring relationships. The anime have just the right amount of action, drama, and funny moments. It also have decent/modern art that just can't even be compared to the art from90's. No offence.

So for all the fans of anime out there that judge an anime base on its art, I would say that this anime is for you.
Still not sure? Then check the list I came up with, if most of them are what you like, then this anime might be for you:

1. Action
2. Male Mc
3. Mostly Male casts
4. Without pathetic girls
5. Cool action scenes
6. No Harem/Ecchi/Reverse Harem (Finally, without those BOING BOING sounds that just ruin my experiences)
7. Bromance
8. Decent drawing and attracting plots

So all in all, definitely give this anime a try!