The Sea God Cult boasts multiple Extraordinary Exponents that have achieved the Transmutation level. It's an undeniable fact that this force is beyond what the Fischer family can contend with.
Irene had originally thought that if the other party were illegal Extraordinary Exponents of dubious identity, the Fischer family might attempt to swallow them, seizing that Treasure-class mysterious rare artifact.
But the power of the Sea God Cult was simply not something they could confront.
"Caution" and "secrecy" are the two most important principles for the Fischer family.
She knew that backstabbing was not the right judgment. The most correct judgment was to report the Isaac family.
However, reporting obviously came with two clear problems.
The first problem was the lack of evidence. Although the Secret Ear Technique could eavesdrop, it had no ability to record voices; what she heard was solely "one side of the story."