Genshin Impact: From the Start, I Killed Venti's Friend

[Transmigration + System + Male Protagonist + Friendship + No Female Lead + Loosely Adapted Plot + Genshin Impact + Possible OOC + 10086]

(It's fanfiction, so cut me some slack, okay?)

As an outstanding employee at a transmigrator studio, Su Chenfan was diligent and conscientious. One day, he received a mission concerning the continent of Teyvat. Apparently, he was supposed to correct certain essential plot points.

Put in plain language, he was being sent to create the tragedies that were bound to happen.

So, following the timeline, Venti's friend became the first victim.

Su Chenfan stood atop the tower, clad in a black cloak. Amid the people's rising tide of rebellion, just as the tyrant king was about to be overthrown, he shot an arrow into Venti's friend's chest.

"If you have to hate someone, then hate me, Venti."

And you too, my friend.

We used each other to overthrow the old dynasty.

Rule One for transmigrators: Follow the System's missions, no matter whether the ending brings sorrow or joy.

(It's my first time writing here, so I'll try not to make anyone OOC. Probably...?)