Mido Ryota, thrilled at the campus life he had longed for, was lamenting that he still couldnt get a girlfriend at all. When he started using the matching app Ren AI Flag that a friend recommended, clinging to it as a last hope, he scored a huge match with Lilia, a beautiful blonde girl! But she was a hero who had come from another world! He was supposed to win her over, but hes pressured into a relationship with marriage in mindand on top of that, they end up living together!? The curtain rises on a slightly unusual youth romantic comedy about a male university student who longs for an ordinary romance!