I, a flat-chested girl, was reincarnated. Isn’t this a chance to have huge b.r.e.a.s.t.s?! I am an a.s.sa.s.sin. A flat-chested a.s.sa.s.sin who yearns for b.r.e.a.s.t.s and love hot spring. I was picked up by an a.s.sa.s.sin’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 b.r.e.a.s.t.s……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 b.r.e.a.s.t.s had been researched! Alright, I will do my best to develop my b.o.o.bs! 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 a.s.sa.s.sin traveling to seek for huge b.r.e.a.s.t.s, superior bikini armor and hot springs.