Raphiel finds herself with a big problem one morning while getting ready for school: her new bra's already getting a little, uh, tight. Still, as long as she's careful, she should be able to get through the school day without the clasps breaking. Or at least that's what she tells herself until she finds out that it's physical fitness day...

Vignette: a demon who gets up the first time her alarm clock goes off, puts out her trash early in the morning, keeps her apartment squeaky clean, and goes to bed on time. Gabriel: an angel who won't wake up until past noon if she can help it, plays MMO holiday quests while dining on instant cup noodles, and games until she passes out at her laptop. These two friends seem to have little in common... until you take a peek inside their bankbooks.

Ever since meeting Gabriel in the human world, Satania just can't seem to catch a break. But today her luck might finally turn around, thanks to a certain TV shopping channel.

One blisteringly hot day, a mysterious character dressed in full-body protective equipment descends upon the city of Maiten. It's none other than the angel Tapris, here in the human world to chase after Gabriel, her beloved role model. Her first day in the mortal world will be filled with shock and horror—especially when she unknowingly runs into Gabriel herself.

When Vigne proposes a trip to the beach over summer vacation to Gab and Raphi, Satania makes it known that she must be included. Needless to say, Gab and Raphi are all too happy to pass the message onto Satania... with their own twists on it. Will Satania get to join the other three on their beach trip? And if she does, will she end up regretting it?

Gabriel gets a job at the local coffee shop to pay for MMO microtransactions, but with zero job experience and even less motivation, things take a weird turn fast. Good thing the boss thinks she's a foreign student...

Vignette wants to invite Gabriel and Satania to try out the school cafeteria with her, but Satania sneaks out of the classroom with her lunch, and Vigne and Gab realize they don't know where she's been eating all this time. When the demon and angel tail her, what they see will shock them...

Gabriel hears that her older sister is heading to Earth and seems troubled. Which really comes as no surprise, as her older sister, Zelel, is known to be very efficient in Heaven. She’s a very powerful angel, who is known to be serious and strict, and is referred to as the Hand of God. Gabriel starts panicking, thinking that she might get such a harsh punishment if she finds out that she’s fallen that the world might be destroyed. Will Gabriel be able to get through in one piece?

Gabriel and the girls are back to business as usual in the human world. Satania realizes a certain dog is missing when it doesn't appear to steal her melon bread. Also, Tapris comes to visit Gabriel, and take notes on the human world while she's at it.

Gabriel's back home in Heaven for summer vacation, and stuck without her computer or video games. At least she can still laze around... if she can get away from her lovable little sister Haniel, anyways. What's a faillen angel to do?

Gabriel is a model angel at the top of her class in angel school. After her graduation, she descends to the human world in order to learn about humans firsthand and become a full-fledged angel. Each day, she cleans the park of litter and weeds, plays with children, and does good deeds, all while attending a human high school... until one day, she hears a cry for help coming from her laptop. Thus began her first encounter with the human entertainment known as "MMOs"--and her life would never be the same again...

With her dislike of Yuzu and Mei's relationship, Matsuri uses the secret photo she took at the shopping mall to blackmail Mei into fooling around with text-pal on Christmas. Meanwhile, Yuzu knows nothing of this and struggles to bake a cake for her first Christmas together with Mei. While her excitement builds, Mei comes home and breaks the news that she won't be able to join their Christmas Party due to student council work...

After accepting Matsuri's forceful invitation to hang out after school, Yuzu takes Mei with her to the station where Matsuri's waiting. Matsuri greets Mei with a cold stare, having believed she'd meet Yuzu alone, and then she grabs Yuzu's hand and happily drags her around the shopping mall. However, Yuzu's constantly thinking of Mei, which upsets Matsuri until she finally calls Yuzu cruel and runs away from the two of them.

Mei and Yuzu study together at their house so Yuzu can place in the top 100 on their exams and keep their grandfather happy. However, after their kiss of mutual yearning, Yuzu can't concentrate at all. Steeling her resolve she asks Mei what that kiss meant only to get coldly brushed off. Feeling depressed, Yuzu heads to an arcade with Harumi, but her mind's distracted. There, she reunites with her childhood friend, the second year middle schooler, Mizusawa Matsuri.

Mei's father, Aihara Shou suddenly returns home. While Yuzu is surprised to meet him for the first time, she explains to Shou how hard Mei's been working for the academy. However, Mei screams at her to stop when Shou just silently averts his eyes with hesitation. Shou tells his daughter, "I'm not returning to the academy." Yuzu is unable to say anything as Mei runs away to their bedroom, and that night she tries speaking to Mei again.

After Himeko declares, "I've crossed a line with the president!" Yuzu gets competitive and wants to cross that line too. At school, both compete to see who will eat lunch with Mei, but Mei turns them down and leaves them equally crestfallen. Meanwhile, Harumi reveals she has four tickets to an amusement park and proposes that they invite the president to all go together...

After confronting Mei with her feelings and kissing her in the chairman's office Yuzu isn't able to face Mei and agonizes over it. Meanwhile, the student council vice president who's also Mei's childhood friend, Momokino Himeko, becomes suspicious of what happened in the chairman's office and meets with Yuzu on their day off to discuss it. There she tells Yuzu, "She's incredibly sad. As sad as she was when the current chairman, her father, left her," leaving her in shock. Yuzu's weakly walking to the station home when Mei appears before her...

Yuzu realizes her feelings for Mei are love, and cries. Wanting to follow her emotions, Yuzu visits the chairman's office to try and reclaim her relationship with Mei after she went away. However, she discovers the chairman suddenly ill?! Mei comes rushing to the hospital when she's called, learning that Yuzu worked hard to save the chairman, and then she begins to open up about herself...

During their first night sharing a room, Yuzu had her first kiss stolen by her step sister. Since then she can't get Mei off her mind, while Mei herself goes on as if nothing happened. Meanwhile, Mei's Grandfather, the chairman of Aihara Academy, takes Mei back to his mansion. Unable to forget the sad expression on Mei's face when they kissed, Yuzu heads to the mansion to confirm Mei's true feelings, but...?!

Yuzu promises Nina that she'll support Sara's love with her, but after learning that the girl of Sara's destiny is Mei, she can't help but feel shaken. Nina ignores all the attention she's drawing, desperately holding Yuzu back to keep her from going to Mei. During their conflict Yuzu gets a call from Sara on her smartphone, saying "There's something I need to give you." She quickly races to the overlook, but Mei isn't there, only Sara greeting her with a slightly sad smile as she returns the student ID Yuzu dropped earlier.