Part of the original text that I write is english, translated to russian, part of the text written in Russian is translated to english. I haven't done any heavy editing of the more recent english portions yet. But I write luna and susan, so chapter 4 stuff from them is me. Side events, such as the quizzes are me, including the programming parts (dicts randoms etc) for luna and susan. Ginny is entirely me along with almost all the programming (I did get help on a recent minigame) up to the point it's too complicated, ill ask for help.
All of the original prologue to chapter 4 english was originally edited by me sometime around april 2018 when I got involved in the project (I volunteer what time I have).