I, a flat-chested girl, was reincarnated. Isn't this a chance to have huge breasts?!

I am an assassin.

A flat-chested assassin who yearns for breasts and love hot spring.

I was picked up by an assassin's organization……and had a tough training every day.

Hence, I couldn't recklessly go to the hot spring which I love, and the fat in my chest was lost….

It's just a dream of dream to have huge breasts……is what I thought.

But, one day.

After rebelling the organization and was stabbed each other with the Last boss,

……I was reincarnated. I'm serious.

This is my chance~ ♪

The method to attain big breasts had been researched! Alright, I will do my best to develop my boobs!

I will shake my chest in a bikini~!

Eeh? There's no bikini?

Then there's still a bikini armor, right?

This is the story of a former assassin traveling to seek for huge breasts, superior bikini armor and hot springs.