I read this a few times a couple years ago when my old high school’s library had the complete series. Ending was kinda mid tbh. Would have liked to see what happened to them all after the fact.
Guys I'm so sorry but there aren't going to be any more chapters because theres no one scanlating this. The manga is fully licensed by viz (vol 1-12) and there are some you can download for free if you search well.
I actually didnt read this here my high school use to have volumes of it very sad to know it was discontinued. But I would still read it. It is soooooo good