Seion
Kinda remembers me of "Liara and Lara one piece fanfic" on royalroad they are 2 sisters who also do ****** XD. Well to your story sadly you made them siblings in their first world otherwise you wouldn't have that "******" problem in the first place. Even so in my opinion, story is way more interesting with 2 mc's if there is romance/love between the 2 mc's ; so kinda share this "******" route or you could just change them to "sandbox-friends" or not blood related siblings, still first day of the story so who cares.