walkthrough ?

[carl]

Is there any walkthrough ? I am playing blind and have no idea what i am doing hopefully i will not mess up rain route
Example: should i surrender to Masa or fight him ? Hmmmm -_-''

[Tiasmoon]

I dont think that particular choice makes any difference. I dont remember seeing a different result after picking either choice. (spoiler: you have to fight him either way)
Once you complete a route twice you will unlock all the locations of the nodes, as well as additional hints/info on how to get things unlocked.

Once you complete all of the routes good endings you also get scenario skip. I've read you can just skip to the end of a route, see the same ending again and it would also counting as ''finishing the route twice'', but I havent tried that myself.

As for getting the good endings: they are pretty much just beat certain fights as fast as possible, beat them at all, etc.

When was the Masa fight, I forget. Nanoha or Aki's route I guess? Oops, missed that you said Rain's route.

Anyway, as long as you are fast when they say to hurry and dont lose fights you will be fine.
Pretty much the only fights you are allowed to lose are the training fights.
You do get bonus plugins for meeting special conditions with any of them tho. Sometimes winning fast, sometimes winning with low damage taken.

In Rain's case when you have to go get her dont slack on the fights. (you get a different ending if you take too long)
Actually you also have to choose ''dont give up'' later on during a choice.

According to the scenario chart there isnt any divergence or reward from the Masa fight (no choice is even listed there, but I know the one you are talking about)

[Morthra]

Here is as spoiler free of a walkthrough as possible:

I recommend doing the good endings your first time around as that unlocks scenario jump once you finish the final route.

Rain Route:
-Good Ending "Rain": Don't take too long during a segment in Chapter 12, then choose "Don't Give Up" in Chapter 13.
-Normal Ending "Ghost": Either take too long during the segment in Chapter 12, or choose "Give Up" in Chapter 13.

Nanoha Route: Entered by choosing "Let her know" in Rain Chapter 4.
-Good Ending "Nanoha": Complete the timed segment in Chapter 12 in less than 2:15, then defeat the final boss.
-Normal Ending "Dream Land": Complete the timed segment in Chapter 12 between 2:15 and 3:45, then defeat the final boss.
-Bad Ending "Embrace": Lose to the final boss.

Chinatsu Route: Choose "Rain........" in Rain Chapter 1, then choose "Fine." in Chinatsu Chapter 4 (otherwise you get put back on Rain's route).
-Good Ending "Chinatsu": Choose to believe Agent in Chapter 14, then defeat the final boss.
-Normal Ending "Entwined": Choose to believe Agent in Chapter 14, then lose to the final boss.
-Bad Ending "Departure": Don't believe Agent in Chapter 14.

Aki Route: Leave the dorm with Aki in Chinatsu Chapter 5, and eat breakfast first and imagine Aki's face in Chapter 6.
-Good Ending "Aki": Complete the battle segment in Chapter 10 within the time limit, then choose to go further. Then choose to accept Aki in Chapter 12, and defeat the final boss.
-Normal Ending "Ark": Either don't complete the battle segment in Chapter 10 within the time limit (or do, and choose not to go further), or don't accept Aki, then defeat the final boss.
-Bad Ending "Nirvana": During Chapter 13, lose the fight where you have to protect Aki.

Between Aki's route and Makoto's route, you have to play through the Reminiscence mode, which is partially unlocked after finishing Chinatsu's route, but not fully unlocked until finishing Aki's route.

Makoto's Route: Choose "Figure out the situation" at the new node.
-Good Ending "Makoto": Defeat the final boss.
-Normal Ending "Object Loss": Lose to the final boss.

Final Route: Choose "Just Attack" at the node that branches into Makoto's route.
-Don't lose any fights between Chapter 2 and 5, and complete the fight in Chapter 3 within the time limit. Then during Chapter 11, ask Kuu if she's jealous and defeat the subsequent fights. This gets you the good ending.
-True Ending: After completing the Good ending for the final route, you will get two plugins. Enable them, then use Scenario Jump to skip to the final node in the final route's good ending. The true ending will follow immediately after the credits.