Klapollo

Klapollo is the slash ship between Apollo Justice and Klavier Gavin from the Ace Attorney fandom.

Canon
Most of their interactions come from Apollo Justice: Ace Attorney. The two met during Apollo's initial investigation during Turnabout Corner. While Apollo and Trucy were trying to get past a police officer to get into People Park, Klavier bumped into them on his way in. When Trucy tells him of their predicament of not being able to enter and shows him the letter of request they got from Alita, Klavier helps them out by dismissing the officer and guiding them to the crime scene. However, Apollo didn't learn Klavier's name until later, when he asked Phoenix about him (as he was curious due to the fact Klavier shared a last name and similar appearance with his former superior, Kristoph Gavin).

They were formally introduced the following day, in court. Once they were, Klavier mentioned how he had rearranged his schedule with the intent to take on the Meraktis murder case once he heard Apollo was defending, as he was curious regarding "the true strength of the little boy who bested [his] brother," even stating that that day in court was more significant than VIP passes for one of his concerts.

In Turnabout Serenade, Klavier invited Trucy and Apollo to his Gavinners concert, sending them backstage passes at 20% off (to Apollo's chagrin—"When you invite people to a concert, it's usually free"). Though Apollo didn't enjoy the Gavinners' music very much, he did admire Klavier's playing and thought he looked cool.

During the investigation for LeTouse's murder, the two worked together more closely than they had in the previous case, as it revolved largely around Klavier's concert. Apollo helped Klavier identify the faulty part in the Gavinners' performance of Guilty Love (which eventually ended up being a helpful to pinpoint the murderer's identity), and during the second day, Klavier enlightened Apollo as to the situation around the Borginian cocoons (which, again, was extremely beneficial to Apollo's case).

Turnabout Succession showed a peak in their courtroom teamwork. Though Klavier was initially distraught when Apollo accused Kristoph of Misham's murder, Vera's poisoning, and of forging the evidence seven years prior that got Phoenix disbarred, he trusted in Apollo's judgement and let Kristoph be called in as a witness. Once it became clear to him that his brother was guilty, he worked together with Apollo to string together the evidence and see the trial through to the very end.

In Dual Destinies' third case, Turnabout Academy, Klavier was the famous prosecutor invited to give a seminar at Themis Academy on the day of Constance Courte's murder. They bumped into each other while Apollo was investigating with Athena, Apollo being quite shocked at seeing him there. During the case, Klavier was free to assist Apollo and Athena more than usual, as he was not the assigned prosecutor for that case. The three of them re-enacted the mock trial together to try and get a better handle on the murder, and during the second investigation, rebuilt the statues of Klavier, Phoenix, and Lady Justice, which aided Athena in the trial the following day.

Klavier and Apollo are often depicted as rivals in and out of the courtroom. Though Apollo found Klavier slightly intimidating at first due to him being so famous, and they are not canonically very close, the two are on friendly terms. Klavier also frequently teases Apollo, calling him by the nickname Herr Forehead—which he finds rather unamusing. Apollo frequently comments on finding Klavier a little ridiculous, or a bit of an exhibitionist—despite this, the two hold a mutual respect for each other, and Klavier frequently assists Apollo during his investigations, as ultimately his goal is always to find the whole truth in a case.

Quotes
"I must say, I'm used to being inspected by the ladies... but this is the first time I've felt this way with another man."

- Klavier upon meeting Apollo.

"I wouldn't miss this day in court for the world. It's worth even more than VIP passes to one of my concerts, ja? How could I pass up a chance to see the true strength of the little boy who bested my brother? ... It was worth cancelling a show or two."

- Klavier admitting his interest in getting to know Apollo.

"Grr... I'll wipe that smile off your pretty face, Gavin!"

- Apollo

"I wish he would stop being so... so cool."

- Apollo

"Shall we hit the stage, then? ... Take care your hearts aren't stolen away, ja?"

- Klavier

"'The Guitar's Serenade' was a huge hit. Prosecutor Gavin's even more dazzling to look at now."

- Apollo

"You're thinking out loud, Herr Forehead. Here, let me buy you dinner to make up for it."

- Klavier

Fanon
Klapollo is one of the most popular and well-known ships amongst fans of Ace Attorney. People enjoy it due to their friendship, dynamic, and Klavier's attitude towards Apollo, which can occasionally be read as flirtatious. Additionally, people enjoy the defense attorney/rival prosecutor dynamic, a trait it shares with another popular ship, NaruMitsu, with many fans liking to depict Klapollo as lovers alongside them. However, some fans tend to opt for other ships with Apollo and Klavier, Justicykes and Gaviskye being the most popular "rival" ships for the two, respectively.

Currently, on AO3, it is the most-written ship for the two and the second overall most-written ship under the Ace Attorney tag. It currently has a little under two thousand works on the platform.

Fandom
FAN FICTION
 * Garyuu Kyouya | Klavier Gavin/Odoroki Housuke | Apollo Justice tag on AO3
 * Garyuu Kyouya | Klavier Gavin & Odoroki Housuke | Apollo Justice tag on AO3