Who is the man in the blade master's mind in the source plan skin propaganda film?

Yasuo's memory was implanted in the blade master's brain. In the series of promotional videos of the lol source project, we can see that the story begins with an experiment by the great swordsman and is later rescued by Jianji. Moreover, the two scenes that are constantly switched in the video imply that the blade master has two personalities.

LOL blade master source plan line:

The source plan lines of the blade master after awakening;

Memory is like a shadow in the fog.

I used to hold this sword year after year.

There's something in my vision.

Am I dead? I remember there is a kind of warmth called hope.

These are not my thoughts. There is a strange voice in my head.

Open plateau blood alloy blade master:

My name is Yi.

The soul will not be transformed.

I'm nobody's pawn.

What about the future stolen from our past?

The fog has cleared away.

The special sound of alloy aso

Technology has surpassed you.

Yes, the special voice of the old blade master.

Those glasses are ridiculous.

The special pronunciation of monkey brother

I met a giant monkey, and my database needs to be updated.

Buy a dream: turn power into kinetic energy.

W: Particle activation is activated.

Back to the city: I'll be back.

Infiltration: detecting their movements.