The hallway scene was handled better in the Anime than in the game IMO
In the anime they where caught completly offguard by Nao and class rep visiting them with no time to prepare and where caufgt directly in the act
But in the game Haru greets them alone at the door and after they come to check in on them and after they are almost gone Sora shows up out of nowhere and ruins it
If she just waited a minute or so no one would suspect a thing but because she just doesnt care enough about the consequences they get caught as a result
Still the reason why they where visiting the siblings makes more sense in the game then it does in the Anime
In the game they skip school and the visit them to bring them homework and just to check in on them
In the Anime haru forgets his Handy and instead of giving it to him at the next morning they take a huge detour just to come to him