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