The Record Of Barton's Fantastical Events - Chapter 31

He Lang died by his own hands for the sake of his imperial younger brother’s ambition, whom he loved. He was offered to be reborn in exchange for giving up his past romantic feelings. Reborn without the burden of his romantic feelings, he brings with him a manual to new worlds. He wholeheartedly followed the instructions of the manual to complete the tasks, not knowing that the originally slag gong was blackening…
He pleaded to his affectionate Emperor brother to release him, he pleaded to the paranoid prisoner next door, but until the end he remained baffled.
In the end, he discovered that the full name of the manual was – “Slag Shou Cultivating Manual”
Σ (っ ° ° °;) っ!

- Description from Novelupdates

While I was reading the first volume of “Danmachi,” I suddenly felt my cock grow. It grew so much that it started to hurt.Suddenly, my sperm gushed out. Before I could understand what was happening, I realized I was in a familiar place.

Protagonist travels between different anime worlds to right wrongs and uncover his reason for being along the way.

- Description from Novelupdates

Ding! The system activated the mission!

[Look at this sick old man in front of you. Let us pull out his oxygen tube and send him off. Let’s give him a peaceful mercy teehee~]

Shinomiya Aoba was stunned.

The old man mentioned by the dog system seemed to be a little strong…

Looking at the Gedo Mazo Pipe inserted in the back of ‘old age Madara’, he was silent and even wanted to laugh.

What do you mean his ‘oxygen tube’?

You want me to die?!

In addition… The super su*cide missions have been released:

[Personally experiencing the ultimate meaning of the Eight Inner Gates! —Take a hard kick of ‘Night Guy’ and shout out, ‘I would not call you the strongest!’] [Give Otsutsuki Kaguya a Thousand-Year Kill! —And record this beautiful moment!]

[Art is Explosion… and SpongeBob Squarepants! —-To accompany Deidara to self-destruct!]

[Inviting Terumi Mei to host the wedding —No less than a hundred words of congratulations!]

In addition, there were many other kinds of death-seeking missions waiting to be opened. And when the main character looked back many years later, everyone was holding back a sentence of “Damn it, he’s crazy!”

“This Ninja clearly didn’t look very strong, so why did he not die even after doing this?”

This was probably a poor child who had been dragged onto a path of death by a shitty system that’s set on seeking death.