Hey Ivo96! Thanks for your high opinion of the game! We hope you can enjoy it. With the letter scene, we will look into what's causing the cutoff, and see whether we can fix it. And hooray to see someone who's heart is melting at the characters and the stories!
As for the Discord Server, I, mysterious Translator, will be working alongside with DelaX and his group to see whether a Tianhehui Discord server can be set up in the near future.
Please spread the words, thanks for playing. And I am happy to say, Chapter 4 will be released this year, and hopefully, with the improved chance, that Chapter 4 English version will be added into the current version as well this year! (Hopefully...)