Akechi is a high school student who conducts a detective business. His abilities as a detective have been widely acclaimed, since he not only has solved numerous cases, but is also able to deal with people from the investigation agency smoothly. His handsome features draw him public attention, and people comment on him as “The Second Advent of the Detective Prince.” Behind his popularity, however, he is quite lonely and yearns to be loved. He was abandoned by his father, subsequently lost his mother to suicide and never had close friends. He was passed around the foster care system as an orphan and has developed a far more jaded worldview than he initially lets on, even calling himself an unwanted child. He has a desperate desire to be acknowledged, which he is forthright about being the primary drive for his actions as a detective. He also has a narcissistic element to his personality, wishing for others to see him as a hero and those who oppose him as the villains. Akechi claims that he has carefully crafted his public image in the hopes that it would make people accept him. He has the public's support only if he upholds the pretense of being a charismatic idol detective, and his fans are quick to turn on him if he makes mistakes.

After meeting and joining the party, he experiences how it feels to be happy together with friends for the first time in his life, particularly the protagonist. Akechi both admires and envies him, since no matter his social standing and how others see him, the protagonist does not let anything stop him from making his own path. Near the final act of the game, his obsession with getting revenge on his father and desire to be the hero of his own story overshadows his true feelings for the protagonist and the party. In that regard, he has become a traitor for both the Phantom Thieves and Shido. He usually speaks in a calm and polite, yet unsettling fashion, but when he drops his guise and uses his powers to become berserk as a last ditch attempt to defeat the thieves, his dialogues become wildly aggressive and profane.

Set to appear in:

- The Daybreakers

- Dark Sun

- Stars and Ours

- Proof of Justice

To have an idea on how Akechi should sound, this should help: https://www.youtube.com/watch?v=ehMX8YJrj8k