I think ven is not the killer? now. I actually also suspect ven before. But using this is too obvious for me. I may overthink things though.
And if he got the book here, why did he have the memory of receiving the book on the hill? I think there is one explanation that he got the memory from strelitizia herself. There is a possibility that darkness also knows but I just feel strange
Edit: Sorry, it is near the tower. I forgot about it
Oh, and I assumed it is a flashback but there is a possibility that it is not
And if he got the book here, why did he have the memory of receiving the book on the hill? I think there is one explanation that he got the memory from strelitizia herself. There is a possibility that darkness also knows but I just feel strange
Edit: Sorry, it is near the tower. I forgot about it
Oh, and I assumed it is a flashback but there is a possibility that it is not