Chotaro has a Nissan, which is a little older than Chotaro.
Chotaro has a Nissan that is even younger than Chotaro.
Chotaro has a Nissan, which is even more narcissistic than Chotaro's Atobe Minister.
Chotaro has a Nissan, which is even more troublesome than Chotaro's Ninzu-senpai.
Chotaro has a Nissan who is even more duplicitous and arrogant than Chotaro.
Chotaro has a Nissan and hates children.
Chotaro has a Nissan, and Chotaro likes him.
Chotaro has a Nissan, which has a completely different personality from Chotaro.
Chotaro has a Nissan and is overwhelmed by his seemingly docile one.