If you got stuck on what to do next ( Really the game is not complicated at all ) but still
here is a small walk-through on what you can do.

Contain Spoilers.

Here is what you need to know.

After the game starts the character will say that you should follow the path of the white roses ( flowers .. whatever )

And then you get inside your house and follow the dialogue

And after it ends 2nd Day starts.

2nd day you go out and do some small chores

They are 4 needed to be done.
This link has a screenshot to show how where they are the big colored spot is the person you talk to to start the chore, and the arrow is where you should go, nothing too complicated just basic stuff. Screenshot [gyazo.com]

And then go back home when its night, then follow the dialogues, and then day 3 Starts.

go to the playground ( Bottom right of the map ) Talk to the kids ( Like your sister told you to do ) and the event would start and you get sent back home.

and then events happening, You will need to follow the road to the library ( Which was next to your school which you started the game at ).

And follow the events

Everything else if i said is a spoiler so here is where i stop.