:A sixth grader, the eldest son in the Ragun family. He gets excellent grades, takes things seriously, and has a strong sense of responsibility. When fighting Maga, he is in charge of spreading barriers and analyzing the enemy.

;Koga (Maga)

:Yen's Maga. A perception-type Maga who excels at gathering data, analyzing, and remembering.

:A fifth grader, the second son in the Ragun family. He's just a little conceited, with a short fuse, but he relies heavily on others. When fighting Maga, he's in charge of attacking.

;Sora (Maga)

:Jin's Maga. An attack-type Maga with strong offensive power.

:A sixth grader and Yen and Jin's cousin, he is staying at the Ragun household. He's a kind honor student who understands Yen and Jin.

:Miki is a girl in Yen's class who has not attended school for two years because of a deadly disease that confines her to a hospital. Her dead dog, Tom, was lead back to her by Yen and Jin, and is slowly becoming a Maga.

:Yen and Jin's childhood friend, she's in the same grade as Jin. She's energetic and competitive, and quick to fall in love? She and Jin quarrel often.

:Akane's editor. A single 28-year-old who likes to crossdress, he's currently looking for a significant other.

:Yen and Jin's mother, a popular novelist. She has a flighty personality, but she has plenty of love for her children

:The current head of the Ragun family, Yen and Jin's father. He warmly watches over his as-yet-inexperienced sons.

:A Gakushi like Yen and Jin, he has just become the head of the Mikami branch of the Ragun family. When he's called ''branch'' he snaps.

;Kana Mikami

:Younger sister of Suguru, she has a huge crush on Jin, whom she had mistaken for Yen.

;Grandmother Ragun

:Young and still very much in love with Grandfather.

;Grandfather Ragun

:A resident of the town of Hanakage. He's a bit mischievous.

;Tsuzumi Nago

:A Maishi in his second year of high school.

;Kaoru Watanuki

:A beautiful girl in her third year of middle school, whom Tsuzumi admires.

;Narama Hayakawa

:Having lost his parents in a natural disaster, he lives with his grandmother and Akira. He won't easily open his heart to Yen and Jin.

;Akira Hayakawa

:Narama's younger brother. He idolizes his big brother.

;Grandma Hayakawa

:An old woman who lives in the town of Hanakage. She is the only person who has the score to the Kagura music and knows the location of the sacred tree. Narama is taking earnest care of her.

;Mayuko Tsumabushi

:Student council secretary of Koujin Academy. She is a sixth grader with an enormous crush on Ayato.

;Hiyori Mitose

:A sixth grader at Koujin Academy who is in love with Ayato. She is the current carta queen.

:Hodou is Shinno's servant. He calls him master and does his bidding.

;Master of the Yamiya

:He run's a shop, much like an antique shop, that sells many things related to Maga. At first glance, he looks like a mad scientist, but...?!

;Yoshino

:A young woman who works for the Master of the Yamiya.

;Sukui Utsukita

:Thew guide to the Yamiya. Does he have some relation to the "Utsukita" Gakushi who obtained the Hyaku Isshu long ago?! When he tries to talk for a long time, he quickly tires of it.

;Tobari Utsukita

:The missing older sister of Sukui. Not much is known about her.

;Meiya

:Always with Sukui. He has an amiable personality.

;Mitsuya

:The companion of Meiya who disappeared with Tobari.

| RelDate = 2002

| LicensedRelDate = January 2005

| LicensedISBN = 978-1-59532-359-7

| Summary = Yen and Jin are brothers in elementary school - and successors in the Ragun family craft of defeating ghosts and evil spirits! In this world, the battle with these wicked "Maga" comes down to a game of guessing your opponent's true name. Once you know the name you gain control over the fight. While Yen and Jin train to join the family business, the two boys must keep their identities a secret... or risk death!

| RelDate = 2003

| LicensedRelDate = May 2005

| LicensedISBN = 978-1-59532-603-0

| Summary = Kana Mikami, a member of the Mikami family, has a major crush on Yen Ragun... but is it really Yen whom she's in love with? When Kana is given a book that is rumored to grant wishes to its owner, will she make her move on Yen - or will she get burned?

| RelDate = 2004

| LicensedRelDate = September 2005

| LicensedISBN = 978-1-59532-803-3

* Summary & Character Introduction

* Who's Guarding the Manor? Parts 1-5

* Lagoon Engine Special 4-Panel Manga

| Summary = Who's guarding the manor? That's the question Yen and Jin must answer when they confront the ghostly Maga that's haunting a creepy mansion! Can Jin master his special attack in time to slay the spooky specter?

| RelDate = 2006

| LicensedRelDate = January 2008

| LicensedISBN = 978-1-59816-801-3

* Summary & Character Introduction

* Parts 1-4

| Summary = Summer vacation is about to begin for Yen and Jin! They go to the small town of Hanakage, where they must try to appease the gods through music and dance. The problem is that Yen and Jin can't play a note and they dance with two left feet. But with the help of a bitter Narama - a newfound friend with a tragic past - can Yen and Jin pull off the sacred dance?

| RelDate = 2006

| LicensedRelDate = April 2008

| LicensedISBN = 978-1-4278-0137-1

* Summary & Character Introduction

* Chapters 5-7

| Summary = Yen and Jin take part in the test of courage at the Matsuri. All the kids are paired up and have to make a treacherous journey up an old mountain path to a shrine they may or may not return from! As if the journey isn't dangerous enough, Maga await somewhere on the way ready to ambush! Will Yen and Jin make it through this one? They'll not only have to prove their courage, they'll have to prove they can survive!

| RelDate = 2007

| LicensedRelDate = December 2009

| LicensedISBN = 978-1-4278-0462-4

* Summary & Character Introduction

* Chapters 8-9

* Chapters 1-3

| Summary = The adventures of young ghostbusters Yen and Jin continue! Since a dangerous Maga spirit is likely to appear at their friend Ayato's school, Yen and Jin must enter its Hyakunin Isshu tournament. But in order to defeat the Maga, they'll have to beat the Hyakunin Isshu champion first!

| RelDate = 2007

| LicensedRelDate = September 2010

| LicensedISBN = 978-1-4278-1236-0

* Summary & Character Introduction

* Chapters 4-7

| Summary = Young ghostbusters Yen and Jin will stop at nothing to capture a dangerous spirit before it possesses the queen of competitive Hyakunin Isshu. Theur best friend Ayato's life may be at stake in this risky gambit if they fail. But first, can they pass the tests of the mystical Yamiya in order to obtain the tool they need to defeat the Hyaku Usshu once and for all?