Nikkyuu 10 Man no Kekkon

Synopsis:

Maika and her little brother showed great strength as they navigated their life of hardship. One day, however, they are unexpectedly faced with an enormous debt of 30 million yen that their father, who has vanished, left behind. . . ! ? Feeling completely adrift and unable to settle this obligation, a man named Nikaido offers them the option of a marriage of convenience. . . ?