Man, those extra chapters are really important to understand why Lorraine is so attached to Rent/Lent/Rentt/Rento/Lento.
Thanks Lapizlazuli for translating these.
PS: I Checked Namepedia and other sources, his first name (レント) doesn't exist... not Rent, nor Lent, nor Rentt, nor Rento, nor Lento, nor Lentt...
He could be named Rent, for always renting everything without the means of ever buying or maybe Lento (Spanish/Italian for slow), because he's slow and got left behind by everybody...
I like Lento personally.