I was reincarnated as the hidden ending of a harem game. I had become the heroine of the BL route.

When she was a child, Sakura realized that this world was actually a dating simulation game she had played in her previous life. She understood that her position in the game was as a support character meant to help raise the favorability of the protagonist—her childhood friend—with the heroines. So she devoted herself to supporting and assisting her favorite from her past life, the childhood friend, in his romantic pursuits. However, at the graduation event where the ending credits were supposed to roll, the heroine who was supposed to confess to the childhood friend never appeared! What? Why? Don't tell me... There was a hidden scenario—a BL route—and she had somehow become that heroine!