The Hanging Gardens and the Chief's best friend during the campaign against the Agents

Find the only path in the endless corridor of death, yet...

I accidentally arrived in the world of Honkai.

The protagonist of "Pre-Civilization" is invincible.

"The Tragedy of Changing Pre-Civilization" and also tried

Trying to find her way home (Alicia, the single-female lead)

The protagonist is Alpha's disciple; the protagonist is invincible.