Tips for true end:

1. do not do any lewd thing to the heroine, (do not choose ドキドキ when lewd things happened)
2. until a certain point will trigger a lightning event, if that happened, you are at the right path
3. boost 好感度 to >80 before the end of the 18th day
4. enjoy :)

is this newest version 1.02? or release version (1.0)?

It’s v1.01.