It's a personality indication similar to MBTI.

https://www.verywellmind.com/the-big-five-personality-dimensions-2795422

There are many such frameworks

Reply to this note

Please Login to reply.

Discussion

I didn't know there was such a thing😅

If Ren-san specialized in Human Resources or Organization Behaviour in MBA, then maybe you would have studied them (or whatever is more commonly used in Japan)