Otome Game no Mob nanoni, Naze ka Oshi ni Ai wo Sasayakarete imasu!

The main character was supposed to be sleeping on a sickbed, but when she realized she had become Countess "Lillibelle", she accepts that she has been reborn in another world and spends her days happily based on the knowledge of her previous life, but......something is missing! But the moment she attended a tea party and heard the voice, she knew:

"This is the world of the Otome game I played the most in my previous life! And that voice is my most beloved Allen-sama!"

She has regained the love for her "guess" and at the same time understands that she is a mob in this world. I can't believe I'm going to be able to watch Allen-sama grow up as a mob...! But then, Allen-sama asks her to marry him...!