One day Lag Seeing finds himself shipped. His mother abducted by someone, he's now just a package sent by her to be delivered to a friend's house. Gauche Suede is a Letter Bee, a member of the Amberg…

Lag, having glimpsed into Gauche's heart, comes to know about his dream to be chosen for the highest title the Bee's that work in the capital can obtain, Head Bee, and that he will soon be transferred…

Some years after he met Gauche, Lag heads to the main post office in Yuusari to take the interview to become a Letter Bee after passing the preliminary examination. After saying all his goodbyes to th…

Lag gave the name "Niche" to a girl that was a letter whose delivery slip was incomplete and couldn't be delivered, and started taking her to her destination. Lag is enchanted with her hair while he …

Lag, as well as Niche and Steak, a strange animal that tags along with Niche, reaches the town of Kyrie where the bridge Bifrost connects to Yuusari. There they meet Nelli, who guides them to an inn …

Lag and Niche run after Nelli to get their crossing pass back, however Nelli is found out as an impostor and is going to be punished! Lag and Niche come up to save Nelli, but just then the letter Nel…

Lag decides to make Niche his dingo officially, and reaches the Yuusari Head Post Office, known as the Bee-Hive. He and another boy named Macky Gee begin the Bee suitability interview examination, wh…

Gauche is no longer a Bee. When Lag heard this from the Bee examination proctor Zazie, he's shocked and depressed. Lag, Nice, and Steak go to see Sylvette, Gauche's sister, but are mistaken for debt …

Lag goes once again to see Sylvette, alone in her house, and his heart is struck when he sees her crying on the veranda. Lag shoots a shindan from his own body into the shindanjuu Gauche left behind, …

On the morning of the first day of work for new Letter Bee, Lag Seeing, and his dingo Niche, the sub-master of the Bee-Hive, Aria Link, stops by Sylvette's house where Lag is now living. She shows hi…

Lag begins his daily life as a Letter Bee, and one day goes to pick up a letter from a young man named Vincent Alcott. He has been unsuccessful in fulfilling his dream of becoming an author and in or…

It's the "Holy Night" season, a festival from the northern area of Amberground. They say that two old men go around on the Holy Night delivering presents to children. In order to continue that traditi…

One day a man named Promessa Prometas came to the Bee-Hive asking for a letter he sent back. But the letter had already been sent out on delivery, with the new Letter Bee Lag Seeing. When Promessa hea…

Lag's friends Zazie and Connor recommend he go for a checkup with the medical team, after he arrives at work one day exhausted from his busy days as a Letter Bee. The head of the medical team is Dr. T…

Lag and Niche are riding a carriage on the way back from a delivery, and the two other passengers are a passionate couple named Bonny and Moss. They've promised to marry each other, but Frank and his…

Lag delivers a fan letter to the popular pianist Mathilda Rein from a passionate fan of hers named Joey, and learns that she always enjoys reading his letters. But by accident he finds out that those …

Lag and Niche are to deliver a small package to a town in Yodaka named Silencio, sent by the Bee-Hive master Largo Lloyd himself. The recipient is a woman who once worked as a Letter Bee, Elena Bran. …

One day, a trio calling themselves the "Letter Pigeons" barge into the Bee-Hive and challenge the Bees to a race, in order to make a name for themselves and start a letter delivery service besides the…

Lag gets a fever. Sylvette and Niche are worried and try nursing him back to health, but Niche isn't used to it and makes mistake after mistake. And whether it's on an errand or shopping she keeps ge…

Zazie comes back after having lost important letters, and he's injured, too. As the rumor goes around that Zazie threw away the letters in order to escape from the gaichuu, another Letter Bee is to b…

A therapy relaxation room planned out by Thunderland Jr. has opened up in the Bee-Hive. Lag and Connor are curious and drag along Zazie to go check it out right away. The caretaker for the rest and re…

Gauche hurries to deliver a letter from Dr. Thunderland Jr. to Dr. Whitman, the foremost authority on vegetation and herbal research, asking him for a recommendation in order to prove the value of Man…

Lag, Connor, and Niche encounter a married couple of Hunt and Sarah calling themselves "ones who were unable to become Spirit" in the town of Honey Waters after accepting a delivery of a letter there …

The larger number of letters that Ann Grado, the girl Lag met, brought out, drew a gaichuu to the town. Lag and Connor worked together to defeat it, but the people in the town got in their way and thi…

Ann and Hunt are grabbed by the gaichuu. While Zazie and Connor struggle desperately to attack it, Lag lets loose a shindan that finally catches the gaichuu. His strength exhausted, Hunt falls toward …

Lag Seeing, who was rescued at a young age by a national postal service worker known as a Letter Bee named Gauche Suede, idolized this Bee and finally met him again after he went missing. However he c…

Niche thinks she has failed at being Lag's dingo, so she runs away from home with her pet(?) Steak. Worried, Lag and Connor head out to search for Niche. However Niche, hungry and wandering aimlessly …

One day, while on a delivery to a certain mansion, Lag is asked by Ray Attlee the owner of the mansion, to search for the person who sent a picture-letter to her. Ray says that the pictures in the let…

"Get away from here"... The boy Lugh works together with an old man he calls "Grandpa" in an imagery lighthouse built out in the wilderness, but he keeps hearing voices from somewhere. Around the same…

Two inspectors from the capital, Akatsuki, come to the Bee Hive. Caribs Garrard and his dingo, Hazle Valentine. They came to investigate a string of letter robberies happening to the south. During on…

Sylvette receives a fan letter addressed to her from a girl named M. Croce, asking her to make a doll that looks like her to give to her brother who will be leaving his hometown to work in a coal mine…

A person spotted Noir up in the northern reaches of Yodaka. Lag is ordered by the Bee-Hive Master Largo Lloyd to find out what Noir is up to, and he heads there with Niche and Steak. There he discover…

Lag visits the town of Blue Notes Blues, steeped in the legend of the Maka, the mysterious creature deeply connected to Niche. The people in town witnessed someone like Noir heading into a cave, howev…

200 years ago, Niche and her twin sister were shunned as cursed, and were eventually disposed of. Thrown into a river, with the most precious thing in the world, her sister, split apart from her, she …

With the wounded Niche left in the "Garden of Spirits" which the Maka protects, Lag runs into Zazie on his way back to the Bee Hive, and they stop by the town of Lament where Connor is. There, the two…

Sunny is ordered to put poison in the cookies that she bakes in the Abbey for Connor by the Abbess. Sunny is shocked at the order... Meanwhile, Connor is shocked when he sees Lag fighting with Roda an…

The fight between Lag and Noir continues, and Zazie comes back to help after sending Wasiolka to report. Just then a ton of swarming type gaichuu, Lao-Lao, come to attack. Lag and Zazie do their best …

The Letter Bees are requested by the government to go after the Cabernet, as they still consider it a serious threat. With not enough personnel, the Sub Master of the Bee Hive and now office worker, A…

Aria and Niche final make it to Houdai's house. Aria tries to hand over the letter right away, but is injured when Houdai suddenly attacks her. But Aria doesn't flinch, and tries to convince him by ta…

After the effect of being shot with Lag's letter bullet, Noir has awakened back as Gauche Suede. Lag asks Largo and Thunderland Jr. to allow Gauche to go home to the waiting Sylvette, and somehow gets…

Torn apart from Noir, Roda chases after him to Yuusari Central, but when she sees Noir happily spending time together with Lag and Sylvette, she becomes distraught and her feelings fall into confusion…

Garrard and Valentine, who came from Akatsuki, will go to any lengths to find Noir, even interrogating Sylvette. When Lag hears this, he tries to do something to make sure Sylvette doesn't get wrapped…

Zazie finds out where the Cabernet ended up, but also finds a Reverse cell nearby at Shark Cape. There Zazie clashes with a Marauder who calls himself Jeel. Zazie shoots his shindan that consists of h…

The many Blue Thorn shindans Zazie shot into Jeel awaken the Cabernet. Just as Zazie thought, it takes Jeel away. However, while Zazie and Lag give chase to finish it off, they see the fragments of Je…

Lag visits the city of Lament to see Connor, as he needs some ability to find the Cabernet which has buried itself into the ground. There, Connor is looking after Sunny, who had her heart eaten by the…

The plan begins to lure out the Cabernet, which has buried itself into the ground, with the recently recovered Connor. But they do not know where it is hiding, where it is heading, or what place it wi…

To stop Lawrence's plan and protect the ones who were unable to become spirit, Noir heads to the Bread and Weapon's Shop, Sinners. Noir asks Jacob, who is surprised to see him and worried, to give him…

During the battle with the gaichuu, the ground underneath the Hill of Prayer suddenly collapses, and Lag and Noir fall down into the caves below. Lag tries again to return Gauche's heart, but...

Moc and Aria are prepared for the worst and are waiting at the Bee Hive for Lawrence, who came to see his evil plan come to fulfillment.

The ultimate battle with the most powerful gaichuu, the Cabernet, wrecking havoc in Yuusari central, comes to a close. Lag stands up, together with the Heart of all of the friends who he's received an…