Issei Sezaki (( Another Story )) walkthrough

Well,I made a walkthrough for, if you can't get the Happy or the best ending,but exploring it yourself is much more fun ^^ but if you really don't get it then here is the walkthrough :) If you don't get the best ending please tell me then I will take a look and correct it

Oh and have fun playing it <3

A. I'm fine...
C. Pretend to be asleep
B. You could say that...
B. Pulling an all-nighter?

B. I can make dinner at my place
B. Really,there's nothing to tell

A. You mean we're going now?
A. I-It does..?

C. ...
C. I don't know...