Valt and Rantaro's friendship:

Valt: We're best friends who have been through a ton together.

Rantaro: Even when things get tough we know we'll always have each others back.

Valt: We do pretty much everything together and know each other better than anyone!

Rantaro: We're an unstoppable duo!

Aiger and Ranjiro's friendship:

Ranjiro: Fuck you asshole.

Aiger: Right back at you dipshit.