Sola (TV)

Throughout the series, Mayuko is pictured wearing a green dress with a green head covering that is strikingly similar to that of Suiseiseki's outfit from Rozen Maiden. The similarities are confirmed when, in the final episode, Mayuko is seen wearing an outfit with a top hat and bow tie that is strikingly similar to that of Souseiseki, Suiseiseki's sister.

While the title "sola" may be considered a pronunciation of 空 = "sora" = "Sky" (an important term in this story), its more important meaning may be the reference to the concept of Anima Sola, given the nature of the yakabito.

the hairpin that mana is wearing is exactly the same as the one seen on nanami in the anime series called lamune, if you look closely in episode 2 on exactly 14:67 you can see the blue one sitting on the desk in yoriko's room, this is the exact same as the one that kenji gives nanami cool huh?

Episode 14 cannot have happened in the storyline.It can't take place between episode 4 and episode 5 because two characters act like they know each other in episode 14 but meet for the first time in the middle of episode 5. It can't take place between episode 5 and episode 6 since episode 14 contains at least two days of story while there is only one night's time between the end of 5 and the start of 6. Events later in episode 6 prevent it from happening afterwards, so it cannot have ever happened in the official story.