When the Student from U.A where shoked by the Villains unexpected visit or threats they combine together to stay alive as . Katzuki & Shouto group they encounter a peculiar deep sea-green emerald jewel non other than Izuku as Katzuki memories flood in his mind of Deku . Deep emotion starts to intertwined Katzuki's mind with the " past " , disgust , hatred , jealousy , lust , obsession & regrets grows in him . While Shouto mind Blizzard with thoughts for the " future " of marriage , satisfaction , determination , questioning , lust & obsession , this deadly thoughts enwrapps on Shouto's mind for the mysterious sadistic Izuku ..For Izuku who focuses in the " present " , he has a different set of goals on this two untamed dogs its a good thing for Izuku to find an entrance in this two since both are driven in lust & obsession giving the Mysterious Sea green emerald easy to manipulate his now , new Aquaintace .