The swallow's older sister, Kamome, who has been abroad for many years for bird research, has returned to Japan! However, Kamome declares that "she loves swallows more than anything in the world"⁉ With fireworks, the sea, and a love that is too heavy for this visitor... Misha's summer is once again the epitome of chaos⁉ A huge hit "muscle" + "onee-loli" home comedy, now even more lively in volume 9!