MTL - The Era of Hard Work - Chapter 649 lay the facts

When he returned to the World of Martial Arts, the game was filled with blood and battles! Chen Kaixin had chased after the footsteps of the one emperor, two empresses, three princes, seven dukes, and thirteen aces for three years, but during the eve of the Sword Among Us tournament in Mount Hua, he was ambushed by evil bastards, and was killed so much that his level dropped to that of a newbie. He completely lost the chance to join the ranks of the powerful players in the game! In great disappointment, Kaixin quit the game and got drunk so that he could forget his sadness, but during that stormy night, Chen Kaixin found that he had actually dreamed for a total of three years, because when he woke up again, he woke up to three years ago, when he was still a student.

- Description from Novelupdates

This crossing is so strange, death crossing, game crossing, etc. are probably barely acceptable, but why can you cross even if the fish tank is broken?

and actually passed through the magic tree in “OVERLORD” that is said to be able to destroy the world?

No! It is sad enough to regenerate into a plant. The protagonist, Ainz Ur Gong, the undead king, has also accepted the adventurer’s guild mission and wants to kill me!

I want to change my destiny! Live! I want to-surrender!

Ainz: Since he has accepted the job commission from the Adventurer’s Guild, deliberate failure is detrimental to the prestige of Ainz Ul Christine (the “surrender” button has been deducted)

actually died as soon as he crossed, but there is still a chance to return~ from the beginning of the magic tree to this world.

I must change my destiny this time! Live!

- Description from novelbuddy

Lane Allen, an A-rank Guide, got injured on an emergency mission suppressing a dungeon break, and perished in his almost-lover’s arms.As the remaining members of his team continued to fight for their lives, in a fancy apartment in a distant part of the city, a young man opened his eyes.“Phew… That hurt like hell…”“It’s a bit of a shame to switch so soon… But I guess it is what it is.”“Anyway, who should I become next?”Actually, Lane Allen was not a Guide, but rather an Esper with a mysterious Plunder ability! It allowed him to possess other people’s bodies, and steal their awakened abilities. Keeping his real body safe, Lane could enjoy life to the fullest, constantly swapping identities, and doing whatever he wanted without ever worrying about the consequences! How great was that?Except…Damien Lennox grabbed Lane’s arm, and pressed him against the wall, his clear green eyes staring down at Lane intently, as if he could see right through him. “There’s no one else whose guidance feels so harsh and chaotic, yet pleasing at the same time.”It seems that Damien was somehow able to recognize Lane even after switching identities, and is unwilling to let him go?

He possessed the Xuan Gate Medical Arts and had fortuitously obtained a heaven-defying Spiritual Treasure!