Everlasting Summer contains many references to various Russian Image Boards:
General image board references:
- Semyon, while a real Russian name, is also Russian image board slang for "same person."
References to IIchan:
- Lena is based on IIchan mascot Unyl-tan (Despair-tan).
- Yulya is based on IIchan mascot YuVAO-tan.
- Olga Dmitrievna is based on IIchan founder and administrator Mod-tan.
- Viola is based on IIchan-created Collider-sama.
- "Bus 410" is an IIchan meme for a bus going to the Hell.
- At the very beginning of the game, on Semyon's computer, his browser displays an IIchan thread. (The thread in question is titled "Stephanie thread." A photo of said character is also clearly visible.)
- The Genda statue is a double shout-out: one part is rather obvious, the other is an infamous IIchan namefag.
References to 2ch:
- Alisa is based on 2ch mascot 2ch-tan.
- Slavya is based on 2ch mascot Slavya-tan.
- Ulyana is based on 2ch mascot USSR-tan. (Also, Ulyanov is a real last name of Vladimir Lenin.)
- Zhenya is based on 2ch-created Mithgirl, a Rule 63 of Mithgol the Webmaster (a rather infamous and bizarre Russian blogger.) His altered portrait can be seen on her cabin's wall.