Post-Mission Clean-Up

It seems like 赫雅 below is still doing missions however he feels like doing them, but I can't quite trust him yet. I'd like to secretly help him out, but without me being directly involved. Can you do it for me?

Could you defeat 70 未来战士A, 70 未来战士S, and 70 未来战士D robots?

It can't be helped if this is too much for you. I can only pray that 赫雅 will be fine...

You've done a splendid job. Keep this a secret from 赫雅.

It looks like you still haven't hit the goal. You must defeat 70 未来战士A, 70 未来战士S, and 70 未来战士D robots.