For My Senior Sister, I'll Slay Dragons Even in Women's Clothes

[Dragon Raja + System + post-apocalypse + mecha] Plot-driven, not mindless wish fulfillment. I don't recommend skipping chapters.

P.S. This takes place after the Dragon Raja world is destroyed. Humanity and the dragons have already fought an all-out war. If that's not your thing, don't click!

A dragon-slaying hero transmigrates to a world inhabited only by women. He is now the only man in the entire world, and his name is Jiang Yang! So, Senior Sister Nono, you must be single in this world, right?

In my previous life, you had a flashy, arrogant, rich boyfriend, while I was just a loser.

By the time I finally grew up, you were already engaged to someone else.

This time, we get a fresh start. No one can stop me from being with you!

This is a dragon-slaying tale about a cross-dressing badass who holds his senior sister close and fights despair, killing anyone who stands in his way.

For various reasons, I can't use Lu Mingfei as the protagonist's name. I'm really sorry.