Where are you brother?!

in this story Naofumi(A.k. A the shieldhero) actually has a twin sister who was visiting a friend for a few days while he was being sucked into the other world however she knew that something was wrong so when she finds out that her brother disappeared she decided to track him down and found out that the last clue was in the library and she got sucked into the same book as he did but then the church greets her and not in an all good way if you want to find out more you have to read it

(The rising of The Shield hero) does not belong to me or (Servamp) only (Y/n)