Douluo Continent: A new system every month, starting by tricking Tang San.

[Abuse Tang San, abuse Yu Xiaogang!]
Gu Xian transmigrates to the Douluo Continent, a world-shattering beginning.
And he even lives next door to Tang San?
The infinite random system awakens at a critical moment.
A new system can be randomly assigned to a host each month.
The system is valid for one month; a new round of random selection will automatically begin upon expiration.
The first system is: the Demon Contract System!
[The host can freely choose items to form a contract with a demon. Upon successful contract formation, the host will receive the corresponding reward.]
[New player quest: Make Tang San sign a contract with the demon!]
Gu Xian was shocked. Could a living person do that?
Tang San will lose a year of his lifespan by signing the Demon Contract!
The rewards for this task are as follows:
[I. The host will share the innate full soul power equally with Tang San!]
[II. After the Martial Soul Awakening is complete, the host's Martial Soul will evolve into—Shadow Scythe!]
Since that's the case, he'll have no choice but to "force" Tang San to mess with him.
From then on, Gu Xian began to enjoy the endless thrill of a new system every month!
"Ding! Congratulations, host, for activating the [Blind Box Sacrifice System]!"
[Successfully sacrificed Tang San, obtained a diamond-level blind box!]
[Successfully sacrificed Yu Xiaogang to obtain an epic blind box!]
"Ding! Congratulations, host, you have activated the [Plot Modification System]!"
[Plot successfully modified!]
[Reward: Soul Ring Simulator, which allows you to freely simulate and control the display color and age of soul rings!]
"Ding! Congratulations, host, for activating the [God-Level Summoning System]!"
"Ding! Congratulations, host, you have activated the [Supreme Sign-in System]!"
"Ding! Congratulations, host, you have activated the [Many Children, Many Blessings System]!"
"..."