All ending and achievement is here (Japanese)
can't translate every selection and phone mail
but if you miss only 1~2 achievement
I hope this all route guide can help you find the check point

所有的結局及成就都在此(日文)
無法翻譯所有的選項跟簡訊
但是如果你只缺1~2個成就
希望可以幫助你找到解鎖成就的條件

All Route (全路線) [imgur.com]