Find your tribe in a Sea of Creativity
I've been thinking again about the meaning of Shouto's and Touya's birthdays. What if Shouto's birthday is 111 because it's like the winning combo on a slot machine (getting three ones is a particularly good sign in light of Endeavor's aim to raise a son to be No 1) and Touya's birthday is 118 because he's only "almost perfect"?
And then I did some further research, and sure enough, the in the 18 in Touya's birthday the kanji for 1: 一 (ichi) and 8: 八 (hachi) can be found in the following Japanese gambling phrase:
一か八か = ichi ka bachi ka, “one or nothing”, or literally “one or punishment” - i.e.: a high risk gamble or something like "go for broke".
As in the phrase:
一いちか八ばちかやってみよう。
Ichikabachika yatte miyō.
I’ll take my chances.
So now I'm 99% convinced that Shouto's and Touya's birthdays are a refence to Endeavor gambling with the kids as if they were prizes in a pachinko slot machines / was playing child gacha?
(Also - Hori's sick sense of humour)