Eternal Mastery: Slime Trapped in Time - Chapter 13—Death of fellow slimes.

Kyoukai Senjou no Horizon chronicles the story of a futuristic civilization returned to Earth after constant warfare hindered them from traveling beyond the post-Apocalyptic Earth. At this stage, a small archipelago called the Divine States were the only hospitable land on Earth. In order to regain the space-faring technology they had lost after many years of war, they decided to recreate history with a book called the Testament as a guide.

It is the year 1648 in the Testament Era. Toori Aoi, Chancellor and Student Council President of the only academy on the airborne city-ship Musashi, faces the ten-year anniversary of the death of his childhood friend Horizon Ariadust in an accident. As he prepares to celebrate the occasion by proposing to P-01s (an automaton who looks exactly like Horizon) he discovers that his suspicion about P-01s’ appearance actually has a basis in truth; P-01s is in fact Horizon Ariadust, reborn into a robotic body. In addition to this, Horizon’s emotions had been stripped away and are now stored in eight powerful weapons called the Mortal Sin Armaments; which are now in the possession of key people in various established countries in the Divine States.

To retrieve the emotions of Horizon Ariadust, Toori Aoi along with his friends and allies begins a crusade against different obstacles as key events in history are recreated in a futuristic manner.

The aliens came with hostility.
Facing the invasion of aliens, human beings are weak like ants.
So this is the end, the real end.
But there is resistance when there is an invasion.
For some, this is not the end, it is war.
So this is war.
Real war!

- Description from Qidian

Kane transmigrates to a world of dungeons when he is playing game. Looking at the Book of Adventure in front of him, he realizes it is his System that is going to change his life in this world.With the system that gives him the ability to extract skills from dead enemies, he embarks on quests in search of treasure and relics hidden in this world.[Extracting...][Completed][Name: Spider Nest Weaver][Category: Active Skills][Explanation: Spend magic power/physical strength to release spider silk from the jet ports, the silk's strength determined by the energy spent, but there are certain limits]

After his family is destroyed and he is reduced to a prisoner, the young Ye Chen inherits the Sword God's legacy. With a fearless heart, he seeks vengeance for his deep-seated grudge, explores the mystery of his origins, and embarks on the path to becoming a Supreme Sword God.“Senior, please teach me the method for revenge!”“If you want to learn the method for revenge, walk up and refine the gravestone in front of this grave.If you can succeed, then you will have the method for revenge.”