Seki-kun starts playing Go on his desk. Yokoi-san tries to ignore this since she doesn't know the rules, but this yet again turns into something rather unexpected.
Don't lose to your shadow!
Verlier nicht gegen 
dein dunkles Selbst!
¡No te dejes vencer por tu sombra!
Tu ne peux pas perdre 
contre ton ombre !
Non perdere contro la tua ombra!
Não perca para sua sombra!