Junior Sister, Please Don't Slack Off!

Romance included + a touch of ensemble cast (the master and disciples) + the heroine is a little “weak” early on

Chang Yusheng, the most notorious good-for-nothing fifth junior sister of Qingwu Sect. Her eldest senior brother is frustrated by her lack of progress, her second senior sister schemes for spirit stones, her third senior brother knows only romance and poetry, and her fourth senior brother is taciturn. As for her, she just wants to slack off and wait to die, until the mystery of her birth tears away her disguise: she is the last descendant of the ancient calamity “Xu,” and every moment she lives is a curse.

When the whole world sees her as a monster and vows to destroy her, her entire sect draws their swords for her. Her eldest senior brother is the first to draw his sword and stand before the mountain gate. Her second senior sister empties the sect's treasury to set up a formation for her. Her third senior brother drives back countless demonic cultivators with a single melody.

And Xie Zhiyan, the fourth senior brother she fears most, lays his vicious sword against her neck and asks her with bloodshot eyes, “Chang Yusheng, your life is mine. Will you live on with me, or shall I take you down with me right now?”

Only later does she learn that sealed within him is the vicious sword “Jiemie,” capable of slaying gods.

He says, “Chang Yusheng, we are both the abyss. If you fall, I'll join you in eternal ruin. If you want to defy heaven, my sword will clear the way for you.”