Thread:WEEABXTCH/@comment-24494906-20170620213005

I started adding birth dates and noticed some problems with the volume profiles.

The profiles always state the age of a character on the previous April 1st, according to a small note below the profiles.

There is one obvious error: Juuzou's age in volume 3, where Ishida or the person that calculated it (let's just say Ishida for short) forgot to make the adjustment for April 1st.

However, I also noticed that Ishida overlooked that April 1st passed in volume 4, so the ages weren't increased by one in the profiles in volume 4 and 5. I figured this out because the ages were suddenly inconsistent with the stated investigator classes. (Like, the difference "age-class" didn't increase by one for most investigators, even though it should have.) Ishida then finally adjusted the reference date in volume 6.

That isn't the biggest problem I noticed, though. It seems the fanbase's and wiki's assumption of Arima's age is off by one. I don't think Fura should be more than one year older than Arima. That goes against how the Japanese school system usually works. We will have to check what the calculation of Arima's age was based on. 