After the breakup, he became the treasure in the palm of his senior class

Summary: After being betrayed by her friends and boyfriend, she met a senior who put her at the forefront of her heart during a trip. Friends regret and beg for mercy? Roll as far as you can, okay? Is your friend jealous and trying to steal your senior’s boyfriend? Big gift package for you, thank you! Does your ex-boyfriend want to get back because of your family's conditions? The family has told him to get away as far as he wants! (The introduction is incompetent, please read the text!)