Hey all, I haven't been on here in ages, but I can't remember the name of a manga, so I thought this would be a good place to find it.
I probably read it 5+ years ago. From what I remember, it was similar in concept to JJK, in that a boy becomes a host for an ancient evil. I'm fairly sure that there is a race that eats humans, and long ago one of the members of this race was banished or something to that effect. Then eventually he ends up possessing a boy, and asks him to make this tree blossom. During the story, others from that race (idk what they were called) come to try and kill them, and I remember at the end, the tree blossoms.
I know this is super vague, but any ideas would be welcome. Thanks!