Overstory Chapters 3 and 4 (An Undertale x OC fanfic)

Warning:

You guys probably saw the femalefriskxoc tag in the prev chapters right? Well, this is where Female Frisk x OC happens now soooo, stop reading this now if you don't want any.

Plot:

After the Reset Frisk did, Sans, Carter, Chara and her were called by a strange fellow who can access universes and can create portals to come with him because a threat to all universes has risen and they would not fight him alone, they will have allies from different worlds to aid them. They were gone for quite a long time from that but returned soon. However, a new chaos is brewing, a fated day where an apocalyptic known as The Annilhilation shall arise soon, led by the leader of an organization known as the Blades of Justice named Theron Frith, he is a soldier from a human army in an alternate universe where humanity was enslaved by monsters. The humans eventually won but however, people from other alternate universes are arriving to wipe out everyone there, with that, the birth of the Blades of Justice commenced. Their goal is similar to Theron and they have to make sure that there should only be one universe, theirs.

Now humanity and monsterkind from every single one has joined forces to stop this threat. Will they succeed? Or will their efforts be futile? Meanwhile, Kurayami himself is resurrected along with Hugo Cross...

Update:

FEMALE CHARA AND FEMALE FRISK X OC IS COMING IN THE FUTURE CHAPTERS, WARNING!