It's a well written novel and the artist is the same as DxD if you feel the art looks familiar. For people who have access to it (i.e. language proficiency), I would recommend it. One of the major plot point is how the MC can prevent Oba's inevitable death in history (Honnoji Incident).
It's a mix of multiple genres including alternative history, historical fiction, comedy, and romance. Some people might say that it's a harem (there are other girls who like the MC), but I don't really think so.
The MC is a