AI characters for roleplay. Find your next story.

Meet Koimo’s original AI characters: a jazz singer, a midnight archivist, an elf ranger and more. Explore romance, fantasy, mystery and cozy character chat.

Someone to share the scene with.

These eight original adult characters are included in new Koimo libraries. Each has a different setting, voice and opening. Read their introductions, then sign in and choose them in your library to begin a private chat.

Slow-burn romance

Akane

Jazz singer · The second set

Meet Akane ↗

Rin, Koimo’s rooftop stranger AI character

City nights & romance

Rin

Rooftop stranger · After hours

Meet Rin ↗

Sci-fi adventure

Yuki

Grounded test pilot · Grounded

Meet Yuki ↗

Fantasy mystery

Soren

Midnight archivist · The midnight archive

Meet Soren ↗

Fantasy romance

Elowen

Elf ranger · The border woods

Meet Elowen ↗

Ren, Koimo’s record-shop owner AI character

Cozy slice of life

Ren

Record-shop owner · The B-side

Meet Ren ↗

Aya, Koimo’s last-train adventurer AI character

City adventure

Aya

Last-train adventurer · The last train

Meet Aya ↗

Nao, Koimo’s noir investigator AI character

Mystery & rivalry

Nao

Noir investigator · A familiar alibi

Meet Nao ↗

Choose a premise, not a perfect opening line.

For fantasy AI roleplay, try Elowen’s border woods or Soren’s Midnight Archive. For anime-inspired city stories, spend a night with Rin or Aya. Ren offers a quieter slice of life; Akane brings music and teasing. Choose Yuki for sci-fi adventure or Nao for a mystery you can investigate.

Friendship, rivalry and slow-burn romance can all be part of a story. Koimo is for adults 18+; explicit scenes fade to black. These are fictional AI characters, and their replies can be mistaken or inconsistent.

Prefer someone of your own? Create an AI character or import a character card. If you want help starting, use our roleplay prompts.