Sentouin, Haken shimasu! 6r3n3n

Synopsis 703b1

Alice unlocks 6's Evil Points and allows him to go into a negative balance to fight off the mech. As Alice needs a lot of time to build her own secret weapon to counter the mech, 6 rushes outside and spends hours fighting Russell with multiple types of weapons summoned from Earth. Just as Russell finally catches 6, Alice appears in her own giant mech: The Destroyer. Three days later, Alice tells 6 that she destroyed the enemy mech as Rose and Snow captured Russell and threw him in a dungeon. Meanwhile, Tiger Man helped the Grace Army fight off the invasion force. 6 and Alice threaten Russell into using his magic to provide water for the Kingdom of Grace by siccing a horny Tiger Man on him. Some time later, as Tillis tries to work on a peace treaty between Grace and Toris, 6 and Alice test Grimm's curse that she is unable to wear shoes by putting socks on her feet. She self-destructs moments later. Meanwhile, Heine swears to avenge her fallen comrades. Back on Earth, the Chosen One and Faustress of the Wind get into an argument in a Kisaragi office before being scolded by Belial. That night, 6 talks to Alice about his dream of conquering all the worlds and finally getting a harem.

(Source: Wikipedia)