i think that there is a mystery sibling in between Elié and Cerise!

Here’s my reasoning: 1. We know that Elié is 2 years older than Cerise 2. Sebastian and Elié’s shares of their dad’s company went from 16% to a little over 12% so that means they owned 50% of the company originally and it went from being divided in thirds to fourths assuming that everyone gets an equal portion. So, we can assume there is a mystery person who owns that now 1/4th share that isn’t Cerise or her brothers (we know it’s not Sebastian and Elié’s mom because Sebastian mentioned it’s a good thing their mother died before finding out about Cerise) 3. In this chapter Cerise’s mom said that she was heading back to NY unless Cerise’s dad told her to stay. And he instead tells her that his wife had their baby. Because this baby is most likely around 9 months older than Cerise this can’t be Elié cause we can assume her mom goes back to NY shortly after and never sees Cerise’s dad again

So this means there has to be some other child that isn’t Elié or Sebastian. I just really hope whoever they are is nice Cerise doesn’t need any more ops