Is My Buddy's Idol the Me Who Became a Valkyrie?

Also known as: The Ever-Changing Goddess: My Best Bro Fell for Me

No way. After I awakened, I turned out to be a girl?

Crap, I absolutely can't let my best bro find out!

Han Yu: Ye Chunfeng, let me tell you again: the one fighting alongside you isn't me, it's my twin sister!

Ye Chunfeng: Then what about the magical girl last time?

Han Yu: My sister!

Ye Chunfeng: And the mecha girl with the sword the time before that?

Han Yu: Still my sister!

Ye Chunfeng: And the time before that...

Han Yu: My sister! My sister! They're all my sisters!

Ye Chunfeng: Could you at least change out of your girl's clothes before you start lying?

Han Yu: ...