Remona

　　,∧＿∧　　　　／￣￣￣￣￣￣￣￣￣￣￣￣￣
　 Ｘ ノ ﾊﾍ X　　　|　 I'm "Remona" and I live with Mona. Kya♪
　 |ﾟﾉ ＾∀＾）　　＜
　§,　　　 ）　　　 |　　モナ板のみんな、これからもよろしくね！
　 !!|　 Ｙ　|　 　 　 ＼＿＿＿＿＿＿＿＿＿＿＿＿＿
　 （_＿）＿）

Remona (レモナ) is Mona's girlfriend.

Remona's Origins

　　ＸΛ＿ΛＸ　　／￣￣￣￣￣
　　（　＾∀＾）＜ オレモナ～
　　（　　　　） 　＼＿＿＿＿
　　｜ Ｙ　|
　　（_＿）＿）

Remona was originally just a version of Mona with Xs next to her ears, and their name was Kachuusha (カチューシャ) which translates to "Headband". Kaschuusha was a creepy stalker and a crossdresser¹, but this characterization was quickly discarded.

Derivatives

Morena

　　 　　 x∧∧x　papa～♪mama～♪
　　:=∽(ヽ^ヮ^))
　　　 　_ｿ　､ﾉ´
　 　 　 ﾞｰヽ_,)

Morena (モレナ) is Mona and Remona's daughter. In the lore of the thread where she was created, Mona and Remona were created as bioweapons, so she is also a powerful fighter.

Black Remona

　　,▲＿▲
　 ＋ノ ﾊﾍ ＋
　 |・ﾉ "－"）
　§,〓Ｂ〓）
　 !!|　 Ｙ　|
　 （_＿）＿）

Black Remona (ブラックレモナ) was a bioweapon created to destroy Remona, but she was defeated by Remona's kindness, and became an "older sister" figure to her.

Monaka

　Λ＿Λ
　∂/ハ)ヽヽ　　／￣￣￣￣￣￣￣￣
　|ハ｀∀´ﾉ　＜　Anta Mona!?
　（　　　　）　　　＼＿＿＿＿＿
　│ │ │
　（_＿）＿）

Monaka (モナカ) is a derivative of Mona based off of Asuka from Neon Genesis Evangelion.

¹Maybe it's just me and I'm overthinking it, but this characterization feels kinda transphobic? idk

Sources:

• Nameless Rumia's Wiki
• 2ch AA Illustration Project
• 2ch AA Illustration Project (Morena)
• 2ch AA Illustration Project (Black Remona)
• 2ch AA Illustration Project (Monaka)
• AA Dictionary Wiki
• AA Dictionary Wiki (Kachuusha)