Seventh's Links
Seventh considers Yanase a good friend, and she can sometimes be seen chatting happily away at him (the chatting part is usually not mutual). Initially though, the only reason she would talk to him was due to his sounding a lot like Jotaro for some reason (same voice! same voice!).
Over time, she began to tell him more and more about herself, divulging her fears and other things she disliked talking about. He became her confidant, something that carried over in their relationship when she became Overseer. She considers him her moral chain, and finds security and safety in his presence.
Yanase is close to Seventh and even regards her as a friend. They don’t quite talk often, though Yanase thinks she can be annoying sometimes when they do. Despite that, they are fairly open with each other. They may have slept together once - no one’s really sure but it’s out there in the rumor mill, and with the way timelines work in the Ghost House, confirmation is only going to come from either of them, which neither are willing to provide. He’s also seen her Observer’s World form and finds it really interesting.
After Seventh assumed the role of Overseer, Yanase was the only one to stay behind with her. Yan views Seventh as his lady, and assumes a role of protector and right hand to her.