"Now that I figured it all out, I'm not scared of anything!"

Gaku and Ruka from ROCK DOWN are scheduled to costar in a new stage production of the Botan chapter of the Tsukihana Kagura series. The two meet their childhood friends Eita and Yuta for a housewarming party at Yuta's new apartment and the four get carried away with stories of the old days. Eita and Yuta remember how an invitation from Ruka led to Gaku's debut as a performer. Ruka realizes that Gaku is his 'rival' in a sense, but Gaku doesn't seem to care. Ruka starts to feel frustrated at Gaku's apparent indifference.
So, hey, you know the book 
I lent you when we were drinking?
إذًا، هل تعرف الكتاب الذي أعرتك عندما كنا نشرب؟
Erinnerst du dich an das Buch,
dass ich dir neulich ausgeliehen habe?
Oye, ¿recuerdas el libro
que te presté cuando nos vimos?
Oye, ¿recuerdas el libro
que te presté cuando nos vimos?
Tu te souviens du livre
que je t’ai prêté ?
Senti, sai il libro che ti ho prestato alla festa?
Então, sabe aquele livro que te
emprestei quando estávamos bebendo?
Слушай, помнишь, я дал тебе книгу?