Characters featured in Rent-A-Girlfriend. The male protagonist. A college student down on his luck after being dumped by his girlfriend Mami Nanami. Using the Diamond app, he rents a girlfriend named Chizuru Mizuhara where he hopes to forget about his ex. Affectionate Nickname : His friends from his grade school days address him as "Kazu-chin". Ain't Too Proud to Beg : How Kazuya managed to convince an acquaintance from the film club to direct his movie.
Kazuya spent weeks going to his acquaintance's classes, taking notes, and even gathering test material. Begging on hands and knees was the final step for the director to accept. All Men Are Perverts : Downplayed. Kazuya is constantly thinking with what's inside his pants and not his head, which makes him very easy to manipulate and was one of the reasons Mami dumped him.
Although he gets a little better, he can't help but try to get a peek of what's under the girls' clothes and often has perverted fantasies about them, but he refuses to do anything that could possibly hurt them.
One example is when Ruka actually offers herself and even bring condoms with her, Kazuya refuses to do it out of his feelings for Chizuru and out of concern that it may break her heart if he actually does it with Ruka. Always Someone Better : How Kazuya feels about most of his peers in relation to him, especially Chizuru. Apologizes a Lot : Because of how often he lies and screws things up, he does this often. He's even been shown apologizing when he hasn't even done anything.
Birds of a Feather : Kazuya and Chizuru have more similarities than they care to acknowledge, despite their reluctance to admit it: She feels she is just as foolish and stubborn as he is, even though she tries to conceal it. She is self-aware and considers herself just another university student with a far-fetched dream. While Kazuya's aspiration to introduce a genuine girlfriend to his family seems corny to her, she does not believe that her dream of her grandmother seeing her on the big screen is any less cheesy.
