History Theatre / AKBKagekidanInfinity

* {{Amnesiac Lover}}: Maria to Ruka.
* {{Beach Episode}}: One scene in Act 1 has some of the girls in the dance team Maria leads skipping practice to have fun at the beach.

* {{Big Bad}}: James Knight, the leader of the vampire hunters who have been in search for Ruka for centuries.
* {{By the Eyes of the Blind}}: Maria is the only one able to visibly see Ruka, with the exception of the two maids(who might not be human, who knows?) and the vampire hunters, who have Mica glasses which allow them to see him.

* {{Character Tics}}: When Sae portrays Ruka, he bites his bottom lip whenever he becomes nervous or emotional.

* {{Crosscast Role}}: Ruka is a male in the play, but the actors who play him are both female.
* {{Do It Yourself Theme Tune}}: Not only is the title song "Infinity" sung by the two leading members, but almost the ENTIRE musical consists of songs by AKB.
* {{Downer Ending}}: At the end of the play, [[spoiler: when Ruka visits Maria in her home, he is stabbed by the hunters with a silver stake. As he slowly dies, Maria demands that he bites her so she can find him after being reborn. They kiss one last time and Ruka bites her before he disappears, leaving only a blue rose.]]

* {{Hopeless With Tech}}: Ruka has NO clue how to use a cell phone.
* {{Huge Guy Tiny Girl}}: With the Sayaka x Minami pair only (because Takamina is the shortest member of AKB, and Sayaka is one of the tallest), Ruka towers over Maria.
* {{Humans are the Real Monsters}}: Ruka implies to the hunters that he is no different from any human, even so far as to asking if they see themselves as monsters.
* {{I See Them Too}}: Maria is the only human who is able to visibly see Ruka without Mica glasses.

* {{Love Hurts}}: Maria's love for Ruka, as well as her love for her friends, makes it difficult for her to decide if she wants to stay with Ruka or her friends. [[spoiler: When her friends try to save her from Ruka, the arguing sides finally cause her to break down and cry, which forces Ruka to let Maria go.]]
* {{Mind over Matter}}: Ruka has this power; he uses it to save Maria from a few delinquent men who were hitting on her, on the vampire hunters, and even on [[spoiler: Maria's friends when they try to rescue her from Ruka. However, in this situation, instead of pushing the girl's back with an unseen force, he merely makes them unable to move from their spot.]]
* {{Not So Stoic}}: After [[spoiler: letting Maria go]], Ruka has a minor outburst in front of the maids. When he is alone, he begins to cry.

* {{Older Than They Look}}: While already implied Ruka met Maria 250 years ago in the first act of the play, in the second act, it is stated by the hunters that vampires can live for over one-thousand years, and Ruka himself is actually several centuries older. The hunters are actually a {{Family Business}}, and have been on the search for Ruka for a very long time.

* {{Reincarnation Romance}}: Maria was Ruka's lover in a past life, 250 years ago.

* {{StarCrossed Lovers}}: The two met and fell in love 250 years ago, but were separated. Ruka found Maria and wanted so much to be with her, [[spoiler: but eventually let her go when she cried because she was unable to choose between him and her normal life.]] And even after all that, when Ruka comes to see her, [[spoiler: he is killed by the hunters. He bites Maria and makes her immortal so she can search for him when he is reborn.]] Since there was never a sequel to "Infinity", it is unaware whether their love reached a happy ending.
* {{Shrinking Violet}}: Yuki's Maria is portrayed as this, as she seems a bit timid when approached by the two delinquent men and is somewhat reluctant in confronting Ruka about when he kissed her after they first met. At the end of Act 2, she gains more confidence as she knows her love towards Ruka is true.

* {{Something About a Rose}}: After Ruka gives Maria the blue rose, it becomes a significant part of the play and their story. There are moments where they hold the rose close and stare at it longingly.

* [[spoiler: {{The Hero Dies}}]]: [[spoiler: Ruka is stabbed by James Knight with a silver stake as he holds Maria.]]
* {{The Tragic Rose}}: While the eternally blooming blue rose is a symbol of Ruka and Maria's love, one of Maria's friends says in the beginning of the play that "a blue rose means you can't meet someone again" and its English meaning is "impossible".

* {{Vampire Musicals}}
* {{Wardrobe Malfunction}}: During the last scene in Act 1, Ruka (played by Sayaka in this performance) accidentally pulled her long cape off her right shoulder. She didn't mind it, however, and it remained secure around her left shoulder while still looking good.
* {{You Can See Me}}: Ruka is not at all surprised that Maria can see him, since their love is true, but he is very much surprised as the hunters have developed Mica glasses, which allow them to see him. This causes conflict between Ruka and the hunters.

* {{Do It Yourself Theme Tune}}: Not only is the title song "Infinity" sung by the two leading members, but almost the ENTIRE musical consists of songs by the AKB group.

* ActorShipping: Between the two main duos.

* ActorShipping: SayaMina and SaeYuki.

* {{Stunt Double}}: In order to create the illusion of Ruka appearing on the balcony, disappearing, and then reappearing on the main stage, a stunt double was used. The stunt double was on the balcony, their back turned, and the main actress for Ruka appeared on the main stage after the double was gone.

** In the AKB1/149 dating sim game, one situation in Miyazawa Sae's route features Sae and Yuki performing a scene from a non-canon/fictional sequel "AKB Kagekidan 2: 「fiction」", which takes place after the first Kagekidan. The kiss scene, however, was interrupted when Sae goes to the player and offers them the red rose she was holding during the scene. Of course, however, the sequel musical never came to be.