MTL - Shoujo Grand Summoning - ~ 1987 I don't need waste that I just call! ...

Six months of continuous heavy rainfall has caused global floods.The Arctic glaciers melted, sea levels rose, and seawater flowed backward into rivers.Ancient viruses sealed in ice have been revived, leading to biological mutations and racial evolution.Everyone is trapped at home, unable to go outside.Liang Yuan unexpectedly awakens a Lottery System, which not only allows him to win various daily necessities but also different attributes.When everyone is struggling with a lack of food and clothing, Liang Yuan is enjoying steak, drinking red wine, and having a meat-filled diet every meal.A sexy and alluring neighbor, wearing a spaghetti strap bodycon dress, knocks on his door late at night: “Little brother, can you lend some food to your sister?”Liang Yuan: “Sis, isn't everyone short on food nowadays? Do you really just show up empty-handed to borrow food?”

A high school student that has lived as a mob-character ―― Mimori Touka

It begins on the mountain.

With the glint of a knife, a flash of steel in the hands of a sworn brother. A betrayal.

Stabbed and pushed down the mountain, Zi Chen lied within the red-stained snow, left to die.

This is where it begins; he is given life by lightning,
baptized by thunder.

Those who had once betrayed him should all suffer in his cruel revenge.

- Description from Novelupdates