Cosmic Captive Reward Question

[Johnny Chronicle]

A question about this reward from the Cosmic Captive scenario 8-00B1:

Cosmic Captive 8-00B1 wrote:

Each character chooses a card from the box that has an adventure deck number less than or equal to the scenario’s adventure deck number and notes it on her Chronicle sheet. When she earns her next scenario reward, she may use the chosen card as a bonus deck upgrade.

Emphasis added. Here's the situation: That was the last scenario a player successfully completed in that adventure. He's carried that character over to SoPluTo.

Does the "next scenario reward" in the emphasized text refer to ANY scenario he completes next? Or is it intended to only kick in after completion of the next scenario of Cosmic Captive?

Can he take his bonus upgrade after completing the first SoPluTo scenario?

Thanks!

[Parody]

It means any scenario where you take the reward, regardless of the source. (Any scenario you complete that you haven't completed before.)