#1 In the game you are left to yourself. Change of time of day. 10 levels of relationship with each character + negative level. In each level there are new dialogues and different possibilities. You have a choice with whom to develop relationships and how. Russian and English languages.
#2 All peek events, with the exception of the massage room ( masseur and wife always catch me 2nd time ) and husband and wife in their bathroom Monday night and in the bedroom right after ( always get caught the second time ) , should no longer fail. Luck score just has to be greater than 1 for peek event success. Some events may be hard coded by the dev for failure no matter what your stats are.