Modem and Light have forgotten about each other because Modem's lost the necklace Light gave her at the cursed Dirty Beach.  Meanwhile, Light's admirer, Ray, appeared.  Wifi finds out about the cursed beach and has to find the lost necklace before Modem and Light lose their memory about each other forever.

Light is starting to remember about his past.  He and Modem start searching for Light's father and find out that he is actually somebody close to him.  TO spare Light from the cruel truth, that person uses magic to erase his identity, making everyone forget about him.  Modem, then, asks Light to drink the spell breaking tea to find out whether their relationship is real.  Light drinks the tea and thanks Modem for helping him lift the love spell.

After Light drinks the spell breaking tea, Light and Modem break up.  Modem's so heartbroken that she cannot do anything.  Meanwhile, Light tries to adjust to his life while processing all the memories he has.  After that, Boss asks Modem to help him with a new project which brings them closer together.  While trying to get over her broken heart, Modem doesn't know that Boss has hidden his secret from her all along.