Fudou Aikawa and Desumi Magahara have recently become a couple, but their relationship must remain hidden. Fudou, known as 'Red Gelato,' leads the heroic 'Gelato 5,' defending Japan. Meanwhile, Desumi, aka the 'Reaper Princess,' commands 'Gekko,' a villainous group set on global domination and Gelato 5's archenemies. While feigning enmity in public, Fudou and Desumi steal moments away from the battlefield to be together. Juggling their newfound love amidst their conflicting allegiances, the duo faces the challenge of concealing their romance from their comrades. Striving to navigate the complexities of love and secrecy, Fudou and Desumi must tread carefully to safeguard their relationship from the prying eyes of the world.