I'm very disappointed with this anime.
The whole "A Girl can see ghosts and is sent back in time to meet historical figures." is a very interesting premise. Unfortunately, they barely did anything interesting with this set up even toward the end. After the first 2 episodes, the entire premise was poorly explained and then was toss aside in favor of normal daily slice-of-life-with-the-occasional-funny-moments anime. Even when they tried something with the whole Tamayori, the thing just ended the minute it got slightly interesting. Seriously why even bother showing a girl who can see ghosts, how it negatively affected her life, and how there are ghosts within this world where they need an entire division to deal with it only to have like 4 disappointing episodes about it. It's kinda a theme with most episodes, something mildly interesting happened only for the payoff to be a disappointment and could have you go "Why?".
This anime was also over-bloated with characters while under-developed most of the actual main casts and their relationship with the MC. Worse still, the anime kept introducing new side-characters with very little or no significance to the story or were only there for 1 gag/flirt with MC then never appeared again even within that episode. Though one of the few good things I do acknowledge is that the MC wasn't a damsel in distress (aside from that one episode) like most reverse harem anime and that she actually went out of her way to accomplish something.
Overall, the best way I can summarize this whole anime is "A girl got sent back in time and lived out her daily normal life in that era, oh and she can see ghost but that's not important since only few episodes gonna touch on that subject."
Truly disappointing.