After hanging out with the Body Improvement Club and Telepathy Club more, Mob starts to feel joy like he'd never felt before. One day while he's having fun with them, he gets a call from Reigen, spoiling his fun. Mob asks Reigen to stop summoning him so suddenly, and Reigen just handles the situation in his usual overbearing manner. And because of something very minor, a gap forms between them. Reigen is forced to go on jobs without Mob, forcing him to reexamine himself.
If we let our guards down, 
he might surpass us before we know it!
!وإن لم نتوخّ الحذر، فقد يتفوّق علينا بسرعة
Wenn wir nicht aufpassen,
hängt der uns alle ab!
Si nos despistamos, nos superará.
Si nos despistamos, nos superará.
Si on fait pas attention,
il finira par nous dépasser !
Se non stiamo attenti ci supererà 
prima che ce ne accorgiamo!
Se baixarmos a guarda, ele pode 
nos superar, sem nós percebermos!
Если расслабимся,
он и нас опередит!