A Delicate Guide, Yet I Can Take Down the Strongest Sentinel

Xie Qingmeng transmigrates into a sentinel-guide novel and becomes a supporting character who doesn't even have a name.

The System that brought her here tells her that every time she lowers one male lead's Destruction Value to 10%, she'll earn twenty years of life.

To stay alive, Xie Qingmeng sharpens her knives and goes after the five male leads, who are all determined to destroy the world...

She accidentally goes too far with her lessons, and now all five male leads chase after her, calling her "Sis" and refusing to leave her alone.

Even the heroine becomes her biggest little fan.

[No CP. There may be one-sided crushes, but the bond between her and the five male leads is purely that of an older sister and her younger brothers!!!]

[Sentinel-guide setting, but with lots of original worldbuilding. Please don't compare it to real life!]