Yawaraka Sangokushi Tsukisase!! Ryofuko-chan

Ryofu Housen, a powerful general from the Three Kingdoms, and Chinkyuu suddenly find themselves transported to Earth, landing in the bodies of elementary school students. They struggle to adjust to their new lives, particularly their flat chests and unexpected desires for the opposite sex. As they navigate their new circumstances, they must also contend with obstacles such as old enemies and epic battles against monsters. Their primary goal is to find a way back to their original lives, and they're motivated by various desires, including Eri-sensei's notable physical attributes.