User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-92.80.249.97-20191005143954/@comment-28884330-20191006162810

@Anon Natsume is Tobio's, she won't be in Issei's harem. Regardless of whether Tobio wants a harem or not, she was introduced for his series. Most harem MCs don't want to have a harem, and that doesn't mean the author gives their girls away to other characters. Also it's not like Tobio "doesn't" want a harem. He has never thought about it or mentioned whether he wants one or not.

@Grandpiece Ishibumi already clearly mentioned that Vali and Lavinia are not meant to have romantic love, just family love. If anyone will become Vali's lover, the likely candidate at the moment is Genbu.