It's one of the few mangas I feel compelled to re-read when I feel tired of the current series and it actually has an OK ending. The main problem as I felt was how they handled the MC's Mother and the final scenes since we never understood why she was so powerful. It could've been covered in the last few vol but IDR other than God Wills It and I swear few line changes here and there MC would've had enough power and training to seal it off 100% on his own.
Also, I felt that in a way that it was odd how serious both their families were towards the MC being the heir, and in reality, he's like 14 y.o. and struggling to not fall asleep in class. I get it but moments like it felt adults never considered how being a teen and being forced to fight every night for your life is detrimental but then again it's a manga. Not to mention his older brother (21 y.o.) gives him a long speech about not relying on power alone but then again... he's a kid.
I liked how the manga-ka handled death and the aftermath of loss on the cast where everyone can die and sometimes there's often no real way for MC to cope with constant fighting. I feel like that too many Shonen everyone dies and we move on to the next scene because plot demands it.
I realize now that it's actually 300+ ch series but it's still very readable and the art is still great. There's a lot of key moments where I just focus on the composition of the scene and the story. Also, there's no creepy scenes with MC and Tokine just no. MC is pretty pure-hearted hero as his hobby is baking cake castles and I liked how the manga-ka handled his one-sided crush that it never goes over board.
FWIW: I watched the anime several years ago and it follows the manga faithfully and I think the battles look much faster in motion so JIC you wanted to see it in a full effect.
Also the Kekkaishi battle system actually made sense in I could understand how people could focus and rely on it unlike a lot of other manga where it's STRENGTH OF WILL = POWER UPs.
Final Thoughts: I have to admit the final vol introduced way too many characters and it would've been much better if they just focused on the MC's family and Tokine's family instead of splintering into side antagonists. I started to feel tired as I realized yet another new character is introduced and how it tied to the main story.
Also, if they had cut down 1/3 of the story and removed the Shadow org plot it'd be much more concise and less confusing but dreams.