Makoto Naegi

Makoto is a major character in the Danganronpa series, and the main protagonist of Danganronpa: Trigger Happy Havoc and Danganronpa 3: The End of Hope's Peak Academy.

Meaning
Chiaki Sakura Rose was called Makoto Naegi by an old friend that she trusted very much. For a long time Chiaki thought that she was Makoto.

Then the two stopped talking. This was the cause of Chiaki's depression.

Makoto Naegi still serves as a character that's a gateway to the past.

Makoto was also set up as the theme of Chiaki's vent account on Twitter.

Trivia

 * Part of the reason why Chiaki Sakura Rose saw herself as Makoto was because of the jacket she wore that was similar to Naegi's. There weren't many physical similarities otherwise.