Episode 4 follows Episode 3 situation as expected.
A new loop, or "chess board" is formed and Ange is discussing with Bernkastel.
After the new OP, Ronove is greetings Beatrice good morning, as a new day is going to start.
Of course, Beato is in a very good mood after what happened in Episode 3. But because of this even, Ronove reports to Beato that Battler of course didn't take well this incident and was sheltering himself under the table once again. Beato is once again worried about Battler's will to continue the game, asking Ronove if it is that serious and if she shouldn't wait a bit before the fourth chessboard.
Unfortunately for her, Ronove states that Lady Bernkastel arrived so they cannot stale the fourth game. That said, it seems it would be better to go headstrong with Battler.
Beatrice arrived with Ronove at the tea salon of the metaworld, where Battler is having antics with Belzeebub, who stole his breakfast (nice BGM).
Beatrice makes her entrance quite flashy and cheerfully (Good mooooooooorning, Battleeeeeer!).
Upon this brutal entrance, Belzee feels like uneeded and quickly give back Battler's croissant and disappear from the salon.
Battler is still startled and says in a friendly yet awkward manner good morning as well. The atmosphere between them is a bit awkward and even beato has hard time to know what to say.
With Ronove, the three of them are having quite some lighthearted antics.
But as they discuss a bit, Battler is then freezing serious, telling Beato "never do it again."
Of course, Beato is playing dumb, but Battler just repeat "never do it again.", pushing the atmosphere quite cold.
In the end, Beatrice laughs and agrees they shouldn't go past beyond "being enemies". They are then talking about this "mysterious guest", Ange. Surprisingly enough, Beato decided to send her a proper invitation to her party, but Ange didn't wait that and is already in the place. It is shown that Ange has a peculiar engrish as well
(gunnaito, hava naisu dreamu XD).
Battler is thankful, but still doesn't know her identity. Ange is a bit pissed, saying that Battler isn't fighting seriously and "having fun" in this locked past, quite envious compared to her own situation. Of course, Battler claims he isn't goofing around and swear to corner Beatrice at all cost.
Then he asks who Ange is, but she doesn't feel like answering, and as Battler stares in her eyes, he has a weird intuition. He is saying out of loud it can't be possible as "she" is supposed to be 6 years old. He then asks her if she is Ange.
But Ange asks him if he believes that. Battler is silent and she adds if he would believe her if she claims she is his ally and so he can rest assured. She tells him that he is just too good natured which is the reason why he got deceived by Beato in the last game.
Battler apologizes and admits his weakness. Ange, on the other hand, claims she came because of that and her purpose is to end the game once for all.
Beatrice is having fun with the discussion and Ange claims it isn't a game but an attempt to trap him for all eternity. Beatrice likes her (in the wrong way), and Battler again asks who she is.
Ange says she is his ally and the witch's enemy. Of course, nothing can prove that, and they mention the case of Virgilia.
After further discussion, Battler asks her name, and hesitating a bit, Ange weirdly calls herself "Gretel" (from the german fairy tale "Hansel and Gretel"). Of course, Battler is like "huh". Then, the game starts, nothing really special.
Now we get a time skip, when Ange is forced to go to Saint Lucia, a private school that seclude the girls to be the elite. But as mentioned in episode 3, is was also the way to sever Ange from the outside world, thus, demolishing her freedom.
Over there, Ange is really not good with it, not having the "grace" and all, nor the intelligence in this prestigious school. She is often sneered by her classmates.
It is explained that Eva didn't allow her to stay with her mother, Kyrie, family. She had no escape from Eva's authority.
While she is alone, Ange reads Maria's diary, which allows her to see Maria herself, due to her "witch abilities". Despite their appearance, Ange still call Maria "Maria onee-chan" and appriactes her a LOT. She is discussing with her, to see how her life was (which seems to be connected with Maria prior the events of Rokkenjima).
We are shown with Maria celebrating her Birthday with Rosa in a family restaurant. Things are quite nice for the both of them and Rosa offers her a handmade stuffed animal that look like a lion cub.
This happy moment reminds Ange of hers as well, with Rudolf, Kyrie and Battler.
Maria is fond of that, and she quickly "imagine" it talking with her, as a imagined friend. She calls him "Sakutaro", as she wanted to use the name "Sakura", but since the plushi is "male", she added the taro portion.
Later on, Maria is told by Rosa through the phone that she won't be able to come back early tonight, so Maria will have to buy her own food. Expecting a problem with her, she tells Maria not to shop with Sakutaro.
Maria is fine with that albeit a bit lonely, though both decide to take this opportunity to stay late and she has a "pajama party" with Sakutaro, and joyfully buy her meal at the convenience store with "him".
After a little while, both Ange and Maria discusses about "happiness", but Ange is quickly found out by some of her classmates, and is sneered at.