Touma Amagase

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Touma Amagase
Touma (iM@S 2 Icon).png
THE iDOLM@STER Second Vision Data
Name: 天ヶ瀬冬馬 (Amagase Touma)
Voice actor: 寺島拓篤 (Terashima Takuma)
Age: 17
Height: 175 cm
Weight: 57 kg
Birthday: March 3rd
Blood type: B
Three sizes: 81-65-80 cm
Handedness: Right
Hobbies: Soccer
Horoscope: Pisces
Ex-Job: Member of 961 Production
Hometown: Kanagawa
Touma sig.png
Birthday Banners

Touma Amagase (天ヶ瀬冬馬 Amagase Touma) was the leader of the 961 Production male idol group called Jupiter, along with Shouta Mitarai and Hokuto Ijuuin. The group was transferred to 315 Production in THE iDOLM@STER: SideM. He is voiced by Takuma Terashima (寺島拓篤 Terashima Takuma).


SideM Idol File

Reason for Becoming an Idol: I started this job just to see where it would go, but I can't say I hate it. I get to move around a lot!

Personal Motto: I make my own path!

Plans for the Future: Let me say just one thing. I've got no interest in being a half-assed idol. Long as I'm here, I'm aiming for the top! If you're gonna be my producer, you gotta understand that. I'm countin' on ya!

Regarding Unit Members: Hokuto's an annoying playboy! And Shouta's too loud! And when he's not loud, it's 'cause he's taking up half the damn couch sleeping! ...But, when it comes down to it, they deliver. I’ll admit that much.


Touma Amagase is a serious and competitive 17 year old. He is often angry and dislikes it when he has to face weak opponents. As a solo idol, he is rather strong. Even though Touma talks to his rivals in a rude matter, when in front of the staff, he is quite polite. Of the three members of Jupiter, Touma is the only one who doesn't know the main reason why President Kuroi hated Takagi and 765 Production so much. (That was because when he asked Kuroi himself, Kuroi told him a lie.) Touma works hard and enjoys being an idol but does not wish to use dirty tricks to become the top idol. He enjoys collecting figures from robot anime and is skilled when it comes to cooking, to the point where Soichiro Shinonome asks if he would consider being a chef.

According to Jupiter ~THE IDOLM@STER~ manga, Touma lives with his father in Tokyo. His mother was later mentioned in D@ys of Jupiter ~THE IDOLM@STER~, according to that, she passed away when he was very young. Leaving him in his father's care, however, his father is usually away from home due to his work, therefore he lives alone most of the time.

According to THE IDOLM@STER STATION!!! 第60回 - ジュピター小芝居その1 (冬馬編) (Jupiter Small Drama 1 (Touma chapter)), he likes cream soda.

Game Discography


As a rival from 961 Production, Touma would do anything in his strength to get the IA Awards. He defeated Ritsuko Akizuki's idol unit, "Ryuuguu Komachi" single-handedly and was able to gather a large audience, despite the fact that one of his speakers broke down when exposed to rain after the start of his performance. He would insult the idols from 765 Production, calling them "weak" and "low-leveled". He even thinks they are playing childish "pretend" games with each other.

This article contains spoilers from THE iDOLM@STER 2

If you finish the game having won all six awards, then you will unlock the game's True Ending. In one scene therein, Ritsuko Akizuki and the members of Ryuuguu Komachi decide to escort the Producer to the airport in a jumbo taxi, but due to Azusa's directions and some engine trouble, the group becomes stranded near the shoreline.

Ritsuko calls another cab for the Producer, but he wants to at least push the girls' taxi to the nearest gas station so they won't remain stranded themselves. Ritsuko decides to ask another man to help, but the only other man around is standing on the beach too far away for her to call out to him. When the Producer approaches the stranger, it turns out to be none other than Touma Amagase!

Though the Producer is reluctant to ask a former rival for help, Touma insists to help push the girls' taxi as there is no one else on the whole beach. Besides, Touma claims, it was the Producer who had first helped him. He explains that he had never thought of "Unity" as more than a meaningless concept before he and the rest of Jupiter were defeated by 765 Production. It was then that he realized that their unit was lacking something crucial, and it was for that reason that they disbanded and left 961 Production.

After hearing this, the Producer asks him what his next move is, as it would be a waste of talent if he and the others ended their idol careers. Touma then blurts out that things might look brighter if the Producer became Jupiter's producer, but the Producer can't hear it (or at least pretends not to?) over the sound of the surf, and Touma doesn't dare repeat it.

It is at this point that Ritsuko and the other girls come looking for the Producer and find him chatting with Touma. Though they regard Touma with suspicion at first, they hurriedly insist that the Producer catch his taxi to the airport. The Producer thanks everyone, giving special thanks to Touma, and is off. It is assumed, though not confirmed, that the girls agree to allow Touma to push their beleaguered cab to a gas station.

Spoilers End Here


Touma and the fellow members of Jupiter appear in SHINY FESTA, as well. They are rivals to the girls from 765 PRO again, but they play the largest part in the Honey Sound storyline. Touma antagonizes Haruka Amami, Chihaya Kisaragi, Azusa Miura and Ritsuko Akizuki by putting on a big flashy show during a rehearsal. Thinking he has made the girls completely overwhelmed, he becomes overconfident and smug. After the 765 idols put on a winning show, the boy can be seen scowling at his loss.

He appears as a rival in the STAR OF FESTA mode for Honey Sound, Groovy Tune, and Funky Note. He is an SSS rank rival who can give his Name Card to the player while in the EXPERT difficulty. Obtaining his Name Card adds 100 points to the player's score after their performance.


Touma is still as part of Jupiter, and he is featured in the game as part of the Physical category.

Basic Lines

Self Introduction: "As Jupiter's leader, I can easily dominate the stage. All so I can become top idol together with Hokuto and Shouta!"

Scout: "I'm Jupiter's Touma Amagase. The three of us are gonna reach top idol by our own strength. I've got my hopes up for you, Producer."
Change!: "Phew... just a little more til the real thing. I love the moment right before, it feels like an electric shock."

Login: (1) "I know I look like I’ve been swamped lately, but you’ll call me if something’s up, right? I’m always on standby for you, so..."

(2) "...’Sup. I’m down for work whenever, how ‘bout you? I already picked out your outfit for ya."

Lesson: "I ain’t holdin’ back! Prepare yourself!"

My Desk (Reliability 0%): "The name’s Touma Amagase. To-u-ma A-ma-ga-se... Don’t forget it, got it?"

My Desk (Reliability 5%): "I dunno about you, but I’m gonna soar today! You’d best keep up if you don’t wanna get left behind!"

My Desk (Reliability 30%): "I’m the top dog around here! Let me shout it out! VICTORY! Hehe!"

My Desk (Reliability MAX): "Christ, you’re so damn late... Listen, you’re the only one I’d sit around and wait for, got it?"

Work (Reliability 0%): "Tch, that was lame... Next time, I’m not settling for less than perfect!"

Work: "Damn, you got me all fired up... So I guess I gotta do the same!"

Work (Reliability MAX): "We’ve gotta pretty big wall to climb... but it ain’t no match for me! Long as you’re here, we’ll make it!"

Reliability UP: (1) "Yo, you haven’t been half bad lately... H-hey, don’t take that the wrong way, okay?! It’s just that you’ve been workin’ your ass off, alright?!"

(2) "Hey, I’m... just gonna borrow this for today, aight? I’ll make sure to return it eventually, yeah? Thanks... you’re saving my ass here..."
(3) "I know I’m always runnin’ off by myself...I, I know it's bad... But... I also know you’ll always be followin’ right behind me..."

Reliability MAX: "If it’s just us two, I ain’t scared of shit! You and me, we’re gonna climb to the top of the idol world... No, the whole world!"

Audition Battle Prep: "Hah? ...You think you're gonna win?! You’re like, a million light years away from my level!"

Audition Battle: (1) "I’ll beat anyone who gets in my way!"

(2) "Alright, now it’s a fight! Come at me!"

Live Prep: "They won’t stand a chance against my skills!"

Live Continuation: "Hey, who said I was finished?! I ain’t the kinda guy who gives up here!"

Live Success: (1) "We RULED that concert! Hehe... Just the way it should be, right?! Easy win!"

(2) "This is it, this... this feeling... This is why I became an idol..."
(3) "Even though it's over, I'm still shaking... I can't take it! Hehe~"

Other Media Discography

THE iDOLM@STER (anime)

Jupiter in the anime

Touma first appeared in the second episode of THE iDOLM@STER (anime) as a passerby who Haruka bumped into. He scolded her for not looking where she's going. He then reappeared with the other two members of Jupiter in the tenth episode as a special guest unit in "The Big Talent Agency Sports Competition".

In the second half of the show, Touma and the other members of Jupiter are recurring characters, and serve as rivals to the 765 Pro idols. As in the game, Touma is very hostile to Producer and the girls because he believes Kuroi's lies about them. With Kuroi's help, Jupiter covers a magazine shoot and replaces 765's cover in Episode 14. He also nearly replaced Hibiki Ganaha on her animal television show in Episode 16.

By Episode 20, Touma, Hokuto Ijuuin and Shouta Mitarai are fed up with Kuroi's tricks and decide to leave 961 Production. They can be seen performing afterwards in Episode 25, currently as freelance idols.

THE iDOLM@STER Neue Green for Dearly Stars

Jupiter makes a cameo appearance as a silhouette.

THE iDOLM@STER 2: The world is all one!!

D@YS of Jupiter ~THE IDOLM@STER~


Jupiter-san ~THE iDOLM@STER~




THE iDOLM@STER: SideM (anime)

Alongside Jupiter, he is one of the six focus groups of the anime.

Song Discography

Image Songs


Recorded Solo Songs

Recorded Group Songs

CD Discographies

Vocal CD "Jupiter's Trajectory"
Special CD: 315 St@rry Collaboration 03 ~S.E.M&Jupiter~

Drama CD Discography

THE IDOLM@STER SideM "Cybernetics Wars ZERO 〜Negai o Yadosu Kikai no Ko〜"

Trivia and Fan Culture


  • Out of the 3 members of Jupiter, Touma is the only one who has a casual outfit in game.
  • Touma is afraid of Takane Shijou because of the mysterious vibe around her.
  • When wanting to talk to the 765Pro girls individually, Touma calls them by their first name.
  • In the game, Touma calls Kuroi "Kuroi sha-chou" or simply "Sha-chou". However, in the anime, he calls him "Old man".
  • Touma was ranked as the third most popular character in the first election of THE iDOLM@STER: SideM.
  • The SideM anime reveals that he is a big fan of the Aoi brothers during their pro-soccer days.

Fan Culture

  • Fans like to call him "Onigashima Rasetsu" (鬼ヶ島羅刹), "Pippin Itabashi" (ピピン板橋) and "Amagasaki Ryuuma"(天ヶ崎竜馬). He's also often called Amatou.
  • Some fans believe Touma to be a tsundere character, because he got flustered easily around the Producer in THE iDOLM@STER (anime) and refuses to admit it.

Character Gallery

SideM Cards