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Happy birthday to our boy Senku it's 4/1 here wishing our leek a great year.

And Senku you better give me all As on my science subjects because look i gave you your dad back. You're welcome. Best birthday gift am I right/j hahah

Well, I was re-re-re-reading some chapters of manga (I can't help it, sorry) and I'd noticed one thing about Gen' cards.

But first, when and who made one of the most powerful trick of this cute mentalist?

Let's start straight (or not, in this case?).

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In chapter 70, paper (and the possibility to make sheets to draw and write on them) is acquired by the Science team. So I don't think Gen' cards already existed before this chapter because they made by paper with a touch of plastic (I supposed because the paper it was more easy to draw something on but only paper isn't enough).

In chapter 82, Gen remembered Senkuu' words about the entertainment (so like his own magic show) and how they will come back. I wanted to include it because from chapters 70-81, Senkuu and all of them in general had zero (0) chills to make something of frivolous like cards. So when Gen' cards could be made? Maybe after this chapter?

In chapter 84, finally we could see one of the cards: the Joker + Gen explained one of his psychological tricks.

Had you noticed? The Joker had a sort of title.

Uncertainty Principle.

It wasn't a psychological or magical concept but a scientific one. The Uncertainty Principle was also known as Heisenberg's uncertainty principle. Google-chan was trying to explain to me what it was but it wasn't important for this post, so let's forget about what it was but not that it was a scientific concept.

Also the double faced joker here had the same scar of Gen.

Cute.

🌻

In chapter 88, we could more of his cards. On the cards were written Tarot Gen Card (and they hadn't the pattern motive that they had in few chapters before).

At first I thought that there was something strange but Wikipedia-chan explained that even cards like these that Gen used could be called like this. For Tarot Cards I did mean another type...

Btw, in this chapter we also saw another card. 3 of hearts that had a title as well.

Theory of Evolution.

This one is an another scientific concept like that for the joker's card. It's a reference to theory of evolution made by Charles Darwin, of course.

So here we go with my theories:

1) Gen made these cards by himself

I mean, he needed them and finally he had all materials to use. Tarot Gen Cards are useful for good (little show that he could make as it was shown in a small photo in this panel from chapter 99)

or "evil" magic tricks (when it was to make his and Senkuu's interests went well). This could be valid because on cards there was Gen's name (normally on something made by Senkuu there was always his name).

2) Gen asked to Senkuu to make these cards

Gen was very lazy. He needed cards and he asked them to Senkuu for the same reasons that I'd said above. Also Senkuu maybe could draw (we didn't know nothing about Gen's other skills) or they asked to the little child from the Village to draw a few illustrations on cards lol

3) Senkuu made them for Gen as a gift (after all, Gen has made for him the telescope)

Yes, same reasons above but there was more. Senkuu didn't express his feelings and he preferred to do something concrete for who he loved and cared about. So he made cards with Gen's name but call them with scientific concepts also to teached them to Gen.

The scene that I've pictured in my mind is like this:

"A mentalist like you have to have cards with him... So here we go. Use them for Science Kingdom's Sake."

"Have you given to me a present, Senkuu-chan~? For what? I'm not complaining."

"It's not a present, it's for your mentalist job. Use them for tricking who wants to trick us."

"Wait... Why has every card a different scientific principle on it?"

"Because you can study them now."

"Have I to study here too? Tewwible!"