Sakura and Sasuke were in a testy relationship, meaning they would have some moments with each other and sometimes sex, and Sakura wasn't sure if they would progress any further soon. But with a letter sent by Sasuke saying he wants more, Sakura couldn’t wait, and all she had to do was get Naruto involved.
A sudden passing motivates Sakura to her full potential. But the lack of materials and skills drastically ruins her ego. But someone intervenes, and will help her in exchange.