Don't Run, Sister: My Lovesick Brother Dotes on Me Every Day

[Quick transmigration + yandere + System + modern and historical settings + mostly younger men, with some older ones]

[Some male leads have serious psychological issues and are determined to claim the heroine. They may resort to unconventional methods when necessary, so proceed with caution if that bothers you!]

[The individual worlds have both happy and tragic endings, but the overall ending is happy. The male lead is split into fragments.]

Lin Guiwan was supposed to die at the hands of a murderer, but unexpectedly became bound to a male-supporting-character redemption System.

To save her younger brother, who lies unconscious, she sets off with Qiqi, an unreliable novice System.

She travels through various worlds, determined to change the tragic fates of the male supporting characters.

A pure and kind little mermaid, repeatedly deceived until her people are slaughtered to the last.

A believer who is abused by others yet still trusts that gods exist in this world.

A ruthless, rebellious young mechanic, burdened by rumors that he brought misfortune to his parents.

A once-in-a-generation talent left paralyzed after being sabotaged.

An easygoing prince sent to a hostile country as a hostage when he was young.

After completing her missions and earning enough points, she returns to the real world, only to find that her formerly obedient little brother now looks at her differently.

It is just like the male supporting characters from the worlds she visited: a yandere with an overwhelming possessiveness.

Even when her brother corners her against the wall, Lin Guiwan is still utterly confused. Can someone tell her what on earth is going on?

Lin Guiwan: I'm your older sister! Even a little brother picked up along the way is still a little brother!

Lin Zhiyi: But, Sister, you were mine a thousand years ago.

You don't need to worry about failing your missions. In every world, I fall for you the moment I see you.

[The blurb isn't great, so please head to the story itself.]

[The values expressed in the story do not represent the author's own. Everything is necessary for the plot.]