Once upon a time, the second-generation Momotaro went to subjugate an oni girl and went missing. The last successor of the Momotaro clan, Momotaro's sister 'Momoko,' is still not powerful enough as the third-generation Momotaro. Today, instead of paying taxes, she was raped and impregnated by the oni tribe. During this, she was also violated by the brainwashed second-generation Momotaro. Momoko, who decided to save her brother, trains her 'down there' to extract the source of the oni's power, 'vitality,' and heads towards the final battle...
