Dual! Parallel Trouble Adventure

family friendly

21st century, action packed, adult animation, alien, aliens, alternate reality, anime, boarding house, coming of age, dramatic, espionage, friendship, giant robot, giant robots, harem, identity crisis, isekai, japan, mad scientist, mecha, nostalgic, parallel universe, parallel world, parallel worlds, piloted giant robot, reluctant hero, rescue mission, robot, romantic rivalry, sacrifice, schoolboy, teenager, world domination

Japan