That's assuming they're not having issues as well lol, they are also required to apply for a visa for France.
They're kind of between a rock and a hard place tbh, If they only apply for a Schengen visa after they qualify they have like 10 days after Tokyo to get it which is just straight up not enough time but if they're applying before Tokyo, their passports might not come back in time.
Although they could already have their Schengen visas for all we know.