The Villainess wants to be Happy in this life

Isekied into 4 years after her death? Oh no , what now? But that's okay! She's not alone , her loyal sister like friend is iskeied along with her as well and plussss she gains another male friend who may or not be a YANDERE! But then there's a lot of more cliffhangers, jeez author take it easy on poor (Female lead)!
Author: heh.... ABSOLUTELY NOT! * evil laugh*
*Sigh* but all she wants is a happy life this time
Author: Life sucks YEAAHHH! So ¯⁠\⁠_⁠(⁠ ͡⁠°⁠ ͜⁠ʖ⁠ ͡⁠°⁠)⁠_⁠/⁠¯