Maezawa answers:
Male members of Universe are expected to behave like gentlemen. If they don’t, they may be deemed unsuitable as members and could even be forcibly expelled.
If you ask him to use one and he refuses, please send your feedback to the club. The club’s position is that from the second meeting onward, it’s a private relationship and the club cannot get involved. However, as long as the man is still a member, whether or not he behaves like a gentleman is important.
If similar feedback comes from multiple women, the club will be able to recognize him as someone to avoid who does not behave like a gentleman.
This isn’t about saying that not using one is inherently wrong. The issue is that doing something a woman dislikes without obtaining her consent is not gentlemanly.
If the woman had consented in the first place, there would be no negative feedback.
That said, I imagine you may feel unable to be firm because, aside from that issue, you still want to continue seeing him. I recommend having a proper conversation with him.
If a child were to be conceived, what responsibility would he take? (Marriage, acknowledging the child, or something else?)
Men live in a society based on contracts, so it may be a good idea to have him put it in writing.
However, be careful not to frame it as a mistress contract, as that could invalidate the contract itself.
You need to limit the agreement strictly to what responsibility he would assume if a child were conceived while you were seeing each other, so that the contract remains valid.
If that feels like too much, I think it would be a good idea to record the substance of your discussion. These days, it’s easy to record conversations with a smartphone.
I don’t think a man would run away when the time comes, but having evidence will give you peace of mind.