Google translation from dev page as of 10/8 (basically, there should be an update v0.12 in a few weeks):
Hello. I will not delay the introduction. This update is entirely devoted to Vike, since this character is behind the others. You are waiting for 2 full-fledged quests in which you have to make an important choice. Actually what you see directly in the update. Also in these quests the theme of NTR or cuckold will be touched upon, which you can naturally bypass the right choice of the main character. Well, or vice versa, as you like
Since the game is slowly nearing its end, I had to structure the code so that all endings have logic and influence from previous choices of the main character.
The beginning of the fourth quest with Vika is available immediately after the third one. The quest itself begins in the room of the sister at 13:00.
Also Vika will be given half of the next update, which will be released in about 2-3 weeks. It will already have two endings.
English version of a game will be finished soon.