A: Marie va venir ce soir ?
B: Je crois que non.
If A agrees with B, should A's response here be "Moi aussi" or "Moi non plus"? I know that if B said "Je ne crois pas", then A's response should be "Moi non plus". But with "Je crois que non", the verb "croire" is not negated but the meaning is negated.