Yuzu will go to great lengths for her beloved older sister, Akane, even skipping her own lessons to watch over her. Despite harsh words from Akane, Yuzu refuses to relinquish her forbidden love even for someone like Seiji, who she may care about more than she realizes. Meanwhile, on the hunt for a new couple to match, fortune smiles upon Seiji and Guri when a classmate approaches them saying she has a crush she would like paired with. The request turns complicated when the classmate, Shikimi, doesn't seem to know the name of her intended partner. While helping Shikimi find this mystery boy Seiji finds that this meek bespectacled girl is not quite what she appears to be...

Guri finally meets Seiji's younger sister, Akua and is surprised by her rather cold attitude towards her big brother. The cupid decides to learn more about what changed this once loving sister, and Yuzu is right there to help (or make things worse...). But while the girls are getting acquainted the demon Stolas appears and a panick ensues! The strangely psychotic penguin seems to have a special affinity for Akua and sends her running. It's up to her big brother Seiji to save her like he used to.

During Yuzu's daily routine of stalking through her sister, Akane's trash, Guri suddenly appears and the two girls begin taking love consultations at school. Seiji and Akane reluctantly agree to help look for coupling candidates and soon the group thinks they have found a pair of ideal targets. However, things get much more complicated when no one can agree if the intended couple really share each other's feelings. In the midst of all this Yuzu and Guri scheme an elaborate plan to prove their instincts are right.

With some divine intervention, Seiji and Yuzu are off to hell to see if they can return Guri to normal. With Coraly's help they attempt to disguise themselves as demons but the jig is up when they happen to run into Shikimi as she wanders the streets. As they are chased by the demon police, Akane shows up to makes a half-hearted attempt to return Guri to her senses. When that fails, she attempts to drag Seiji back home. Yuzu finally convinces Seiji to talk to Guri to let prove to her that he does actually care about her but will it be enough? Will the real Guri ever come back?

Guri has gone missing. Seiji seems unphased while Akane is thrilled but Yuzu is deeply concerned for her friend and begs Seiji to seriously look for Guri. Meanwhile, Shikimi is up to no good and Seiji catches her in the midst of trying to trick Kusunoki-sensei. Seiji drags Shikimi away to save the hapless teacher, but winds up having the tables turned on him when she traps him. A confrontation boils up and Guri finally falls from the sky, literally, to ask Seiji how he truly feels about her.

As his family takes off for a few days, Seiji finds himself home alone. Well, except for Guri, of course. But the peace of the moment is short-lived when Akane shows up at his door saying she's there to spend the night while his family is away and to claim the kiss that Seiji had promised her. Things only get more complicated as usual when Yuzu and Shikimi show up as well. Things seem to go rather okay until Seiji's younger sister Akua returns home early to find Seiji surrounded by all four girls in a compromising situation and proceeds to scold her brother for his behavior. Curious about the siblings' relationship, Guri drags Akua out shopping to get to the bottom of her brother-complex.

Aino Seiji is your typical male high school student when he meets Guri, who is a shinigami? No, a pervert--no! An angel?! Guri introduces him to the Kiss Note and explains that if he doesn't kiss someone within 24 hours, she will die. So it's off to Seiji's school to find his school crush, his classmate, Hiyama Akane, but of course nothing is ever so simple...

All is quiet in the dukedom as the Germanian army redirects its forces to deal with a costal invasion by the allied forces. But the silence is suddenly broken by a deadly feint attack, and Izetta is sent to save the day. But when she arrives, she's met with another Witch! Who is this new witch, and can Izetta defeat her?

Rickert lands in the dukedom of Eylstad on a secret mission: to uncover the secrets of the witch. He's sent to infiltrate the old castle of Eylstad, which is being heavily guarded by the Royal Guard. But his mission takes an unexpected turn when he runs into Bianca, the head of the Royal Guard...

Izetta and the princess have come to the nation of Britannia to ask for help from the allied forces. In order to win their favor, Izetta is sent to destroy a Germanian aircraft carrier that's floating in the North Sea.

Izetta's victory has won a brief peace for the dukedom, and the princess intends to enjoy it. Together, they practice dancing, and go to a pie shop. But there's trouble brewing in the background, as young private Jonas has discovered her secret. How far is Seig willing to go to keep the country safe, especially when innocents are involved?

Izetta is powerful enough to fight whole armies, but her strength is limited. She can only use her abilities near certain ley lines, and outside them, she's no different than a normal girl. When the Germanian army attacks in a spot far from these ley lines, the duchy is forced into a corner: how can they repel these foes without giving up the secret of Izetta's strength?

With Izetta's victory over the Germanian army fresh in people's minds, the army of the Dukedom decides to make her into a national icon and announce her to the world. She's given the finest white dress they have to offer and a huge ceremony is arranged with journalists from all over the globe. But before she can be used in combat, they need to unravel the secret of her strength, which means she must travel to a hidden location with a girl who doesn't like her very much at all.

The Germanians forces are rolling up an important strategic area, and it's only a matter of time before the dukedom's defenses fall. Waves of bombers are striking from the skies, and an entire company of tanks is tearing apart the helpless infantry. But when all seems lost, a red-haired witch appears from the skies...

Fine and Izetta escape the burning wreckage of the plane on the back of a rifle. But squad of Germanian pilots participating in the invasion of Eylstadt hear the transport's distress call and move to intercept them. Izetta is forced to use her magic to fight them off, breaking the rule her grandmother gave her. When the enemy planes are shot down and driven away, Izetta takes Fine to join the retreating Eylstadt army, where she reminisces about how they met.

Germania has loaded a massive bomb with magical energy that threatens to destroy the entire Dukedom. It will launch soon, and the only way to stop it is to defeat Sophie. Using the magic stone, Izetta flies to Germania for one final battle.

The capital of Landsbruck has fallen, and Izetta and the princess are chased into the mountains. As the imperial forces track them down, Seig makes Izetta an offer: he's willing to give her the other half of Sophie's magic stone. With this powerful item she fight toe-to-toe with Germania's witch, but it causes the user tremendous pain, and shortens their lifespan...

Izetta has been defeated by Sophie, the true White Witch. Sophie is out for revenge against the Dukedom for the crimes their ancestors committed, and she'll gladly work with Germania if they'll help her destroy it. Izetta and the princess barely escape to a hidden fortress in the mountains, but Izetta is so badly injured she can't walk. How can she stop Sophie from destroying her country?

Young princess Fine, the daughter of the Archduke of a small alpine country, travels to the neutral land of Westria to seek help against the Germanian empire that is invading her kingdom. But her plans go awry when she's captured by the Germanians, and transported by air back to their capital of Neu-Berlin. Then a strange light appears at the back of the plane, and a witch begins to awaken...

Tazuna and Koyori battle Awaza Kodama a second time, and she's just as powerful as the first. Tazuna, and Single Gear, cannot hope to defeat her. Their only choice is to rely on Koyori's unseen strength.