And LS X takes place in 2017, with Aidan Flamberge's final defeat and the destruction of the Lunar Shadow (yes, it's also a thing that's there).
Notes can be good and all, BUT they can get messed up, as with Ilina's birth date and Valkyrie's wedding year and stuff. 
Yeah, a lot of my own projects tend to have notes and various drawings. But back to topic, wasn't Lunar Shadow supposed to also be an entity (ala Chaos from Castlevania)?