I Became a Vicious Supporting Role in the '70s - Chapter 2 Crazy Hoarding

Shu finished the final chapter of a hated apocalypse novel, only to wake up inside it hours later. In Zoxhia, dungeons open without warning, monsters flood the streets, and even the strongest heroes die miserable deaths.The only reason Shu has not joined them yet is a cheat no one else has ever seen: a Domain that can grow into an absolute safe zone. Armed with incomplete knowledge of the story, a dangerous system, and a world already heading for ruin, Shu has to survive, grow stronger, and change an ending where the demons win and everyone dies.discord: https://discord.gg/WkyX6NuZZA

Transmigrating to the disciples of the Demon Sect, and relying on the skill modifier to become a giant of the Demon Dao.

[Detected the technique “Blood Nerve”, relying on devouring blood to practice]

[Side effects: easily affected by the spirit contained in the blood, becoming bloodthirsty, bloodthirsty, mad, and even brain dead]

[Please wait a moment, the system is being modified…]

[Ding! The modification is complete, and the side effects are cancelled]

- Description from novelbuddy

A skilled but unfortunate modern-day assassin was killed in a freak accident. However, he soon found himself summoned to another world by an evil wizard, who had him possess the body of a boy as an experiment. After successfully planning the evil wizard’s downfall, he used the wizard’s body as a springboard to gain influence and power in his new world.

- Description from Novelupdates

When he opened his eyes he found that he had been reborn as an extra in a novel, which he finished reading yesterday. On top of that, he has become a student of the same battle academy, where the main plot will happen. Let's accompany Rio on his journey and find out where it leads us.“i will steal protagonists chances, as for what will happen to main plot if i do so? i don't care!” (Rio)*The book cover doesn't belongs to me if someone wants me to take it down please contact me directly.*(MC is selfish and cares most about himself, rather than following the main story he will follow his own will. and there's no harem too.so, if you like a hero of justice and a plot following type mc with a harem or something then this is not your cup of tea.)