Naeceles

Naeceles is the het ship between Makoto Naegi and Celestia Ludenberg from the Danganronpa fandom.

Canon
After their first acquaintance, Makoto defines Celestia as both polite and forceful at the same time, and described her as someone he should be careful around, after being suspicious of "Celestia Ludenberg" being her real identity making Celestia immediately jump in defense insisting that it is in fact her real name.

During the game's chapters the two of them barely share any amount of direct interactions, excluding the free time events

During chapter 3, there is a moment where Naegi agrees to sneak on the girls in the bathroom, and Celestia was one of those girls in question.

In free time events throughout the game, Celestia started reffering to Makoto as a "D-rank" since she had a habit of ranking the people around her based on how she feels about them, she also shows that she had an interest in his Ultimate talent which is "Luck" and wanted to test wether his or her luck was stronger as the Ultimate Gambler, she also says that she would revise her impression of him whenever he gave her something she liked which also makes Makoto happy for her in return.

Celestia tells Makoto some stories about her gambling experience during her free time events, she also shares many things with him, such as her "perfect gambling strategy" and eventually opens up to him the more he talked to her, which is shown in her telling him to talk to her again sometime and being much more respectful towards him

In Celestia's final free time event, she asks Makoto if he could meet her up in her room in order to tell him something important, in a way where she seemed much more polite and somewhat shy to Makoto's suprise, after going to her room as she asked, she tells him that she has received results and states that the child she carried was his, which afterwards turns out to be a lie, what she actually had in mind is that she has considered promoting him to "C-rank" with a brief explanation of what her ranking system is about, stating as well that she had "knights" from all over the world that submit to her service and admits that Makoto might have the potential to be one of them. Makoto concludes from this that he can officialy call her "his friend" but a type of friend he should keep his guard up with.

In the School mode events, Celestia lets Makoto take her to different places where they could spend time together, whenever Makoto made the good choices, she admits that she had a lot of fun with him, and asks him if they could do this again anytime soon.

In the School mode ending, Celestia finaly considers Makoto worthy of being the first "B-rank" and Makoto agrees on marching towards a hopeful future with her as her Knight in order to achieve her dream of living in a european castle, as she held her hand for him to take.

There is also an interaction between the two on Celestia's ultimate talent developement for Danganronpa V3: Killing Harmony, where they plan to play a match of Mahjong against the school's headmaster along with Nagito Komaeda.

Fanon
The ship isn't seen as by popular most fans, but it mainly begins its sail from when Celestia tells Makoto that she was pregnant with him being the father as is it considered as ship tease, as well as the fact that Celestia wants Naegi to be her knight and considers him as someone worth of her time, along with the many free time and school mode events, all play a role in adding fuel to the ship.

some shippers believe there is a possibilty Celestia might have a crush on Makoto with all her statements about considering him worth being her knight and having an interest towards his talent of luck but since she does her best to keep her composure, it would be hard for her to confess her feelings to him, making some kind of a tsundere relationship with him, and since Celestia has issues redeeming the fact of being "Average" as a good thing, Makoto's optimism could help her change that vision into a better one.

Quotes
"Hmhm. The more wonderful things i receive from you, the better impression i get!"

-Celestia after receiving a pleasant item from Makoto during the free time events.

"Seeing Celeste happy with something i gave her makes me happy!"

-Makoto after seeing Celestia's reaction to something pleasant he gave her during the free time events.

"You are the Ultimate Lucky Student, yes? does this perhaps exceed my own luck...?"

-Celeste questioning if Makoto's luck could exceed her own during the free time events.

"The child growing in my belly... It's yours."

-Celestia lying about being pregnant during her final free time event.

"Perhaps, it is not impossible. With you standing next to me, I am certain..."

-Celestia reasuring Makoto that her dream isn't so impossible to fulfil as long as he is by her side, during the school mode ending.

Fandom
 Fan Fiction 

Makoto Naegi/Celestia Ludenberg on AO3

Makoto Naegi x Celestia Ludenberg on Fanfiction.net

Videos
Celestia's free time events

Celestia's School mode events

Celestia's trigger happy heart event

Celestia's School mode ending