Yes sadly this is the end of the series it got saw on reddit that this and several others have been or have a 90% of also being cancelled for low reception for those series. I just hope we get like a flash forward X years in the future on the author's twitter or something showing Jinta and Manaka either dating or married
Sad the series ended between this one and the others in the same section in the magazine that have been getting cancelled would've like to have seen this develop further they fight more spirits and eventually down the line see Jinta and Manaka either date or marry at or just before the end of the series