Can there be more than one protagonist in a novel?

Condition 1: Collect 1 Yellow Turban Soldier’s Rune (Completed) Condition 2: Defeat 100 Runic Monsters Solo (Completed) Condition 3: Kill Wild Boars in One Strike 5000 times (Completed) Condition 4: Consume 10 Runic Pills (Completed) Your Rune Can Now Be Upgraded.

A man that doesn't know his past, except for specific memories, was suddenly throwed on a weird but familiar world, in a dangerous situation. And now he has to survive in this world without any guidance but a system that came out of nowhere. Read the Tags. I placed a lot of Tags that has mature content as this novel will be full of spicy lemons. But, of course, it will have plot as writing too much lemons is mind tiring. Have a good time reading it. Also, if you see mistakes at the beginning, don't worry, it becomes better as you read. If you understand me.( ͡° ͜ʖ ͡°) All the rights of the works I may use as reference are from the respective Authors, with the exception of my OCs. Also English is my third language, so forgive me if you see many mistakes or chronological errors.

Lin Qi transmigrates to a world of immortals. In this world, there are sword immortals who can behead a person from a thousand miles away, peerless great demons who burn mountains and boil the seas, and ancient gods and devils who can divine the heavenly secrets. As a disciple in charge of miscellaneous chores in the Skysword Sect, Lin Qi doesn't have any cultivation talent. A hundred years had passed in a flash, and seeing that he has nothing to do with such a great world, Lin Qi is incomparably depressed. Just as he is about to die of old age, he suddenly awakens a cultivation system. Unlocked One-Click Cultivation System: Limitless cultivation speed boost, one major realm per second! Unlocked One-Click Technique Practicing System: Cultivation technique instantly maxed out. Cultivate 10,000 techniques at the same time! Unlocked One-Click Clone System: 100% of the actual body's strength. Can self-destruct, can teleport, can fuse! As a result, Lin Qi begins to cultivate again with his hundred-year-old body, becoming invincible under the heavens.

Being taken away of all his freedom, Noah was thrown into the jail accused of a murder he hadn't committed. This incident broke his personality permanently, getting out of the jail Noah started living as a shut-in giving up at everything.  Noah read novels as a mean to pass his time, while reading novels an particular novel caught his eyes, it's name was 'the hero of velveric fights the demon lord' 'It's a harem novel......' That was what Noah had thought in the beginning but, it all changed at the end of the novel.  'What the Hell's with this crazy novel!' The protagonist and all his harem members were killed and in the end the demon Lord took over the world.  It was then, after finishing reading the novel, Noah started coughing out blood and succumbed to his lung disease. Opening his eyes Noah found himself in a body of a 8 year old kid of the Melvix family which appeared in that crazy novel. He was known as the garbage of the Melvix family by all the knights and family members but that didn't matter to Noah. What matter is that- 'It's impossible to survive in the novel if you are not strong enough......' ********************************************** The cover used for this novel isn't mine. if you are owner of it and want to remove it please inform me.

A hero defeating the demon lord dies after his victory. Seeing as his time has come to an end, he felt great regret for all the things he couldn't do. As death takes him he closes his eyes and opens them, as a baby in a brand new world. Reincarnated with his past life's memories he will do his best to live a life with no regrets.

*Warning: High level of Bullshitting* Sid was your typical average person. Spending his days in front of his computer while reading Fanfictions and searching for something to appease his boredom. One day, he left his house to buy a few snacks, however, on his way to the store a flying anvil appeared out of nowhere and smashed his head against the ground, killing him instantly. Seemingly being chosen by GOD for no special reason at all, he is given three wishes and a mission to kill an evil anomaly in One piece world. An anomaly with absolute power and incredible strength that could even make the four Yonkō tremble against its presence. Sid, now with a mission to kill this absolute horrifying being, and his desire to become a hidden power in the shadows like a certain guy with the same name as him did in a manga, trains to become the strongest transcendent existence at night, and acts as the most normal mob character at day. The most dangerous pirate, the strongest admiral, the most revolutionist Revolutionary(?) Why be just one when you can be all of them and a normal marine side character at the same time? This is the story of a seemingly "Normal" marine. Training and becoming the strongest man alive, without anyone noticing! ° ° ° One piece is not mine, just in case you didn't know... I just own the MC... I think? iThe cover was made by me B) In case you have read "Kage no Jitsuryokusha ni Naritakute" and the adventures of Shadow-sama, then just so you know, MC is not the same as that manga, they just had the same name because I couldn't come with a better name. Also, MC will not be as dense as Sid was... maybe. Anyway, that's all. Hope you like it!