Tensei Reijou wa Shomin no Aji ni Uete Iru

Normally, he would be angry with me with a smile on his face, but now my Oniisama was expressionless.
It’s not often that I see Oniisama like this, so I was disturbed.
Oh no, this is not good.
If I told him that Alicia-san, the blonde drills girl had spoken out against Oniisama in this state, would Alicia-san have to leave the academy as soon as she entered!?
But even with our status of the Duke’s household, he just cannot ruin a young lady of the Marquis’ household… right?… I think.
I’m afraid that Otousama and Oniisama might do it, though.

“Erm… umm, that…”

When Mariel-chan saw that I was hesitant to say anything because I was afraid that it would upset Oniisama, she spoke up after making up her mind.

“Umm!… I, I told her.
I told her that you and Cristea-sama can get engaged.
I apologize! I, I didn’t think… that Cristea-sama wasn’t aware of that…”

What does she mean? What do I not know?
Oniisama was stunned, and His Highness sitting next to him seemed to be somewhat flustered when he saw how Oniisama was acting.
I filled my head with question marks and looked at Mariel-chan, who was looking down, and Oniisama shook his head with a troubled look on his face.

“No… it’s not your fault.
It’s not like it was a secret.
You couldn’t know that Cristea didn’t know.
This is our fault for not informing Cristea properly.”

Eh? What? What is it?
I couldn’t control my anxiety as I looked at Oniisama and Mariel-chan.
Oniisama closed his eyes momentarily and looked straight into my eyes.

“Cristea… we are not real siblings.”
“… Eh?”

Me and Oniisama are not real siblings!?
Surely not… am I perhaps not from the Ellisfeed family!? Was I taken in? Did they actually find me under a bridge or something!?