I read this manga and I'm trying to find it again it was about these friends that were investigating these dead bodies and someone was calling them on the phone and telling them what to do and in the end(SPOILER)----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- it was all about the mc's dad who abused them and they all killed his father and buried the body in a cave while they were children
I read this manga and I'm trying to find it again it was about these friends that were investigating these dead bodies and someone was calling them on the phone and telling them what to do and in the end(SPOILER)----------------------------------------------------------------------------------------------------------------------------------------------------------------------------- it was all about the mc's dad who abused them and they all killed his father and buried the body in a cave while they were children