Bunji is vulgar and not very bright. He can't read or write hiragana like his classmates, and can't manage to learn it no matter how many times he practices with Reiko. He loves playing with toys and insects, and is willing to hold off using the toilet for a few more seconds of playtime. When Reiko asked him what his dream was, he said he wished to be a part-time convenience store clerk.
[Edit]Bunji takes a lot after his mom (Rieko). He isn't good with school work just like her, but he has a great imagination. Is Bunji one day going to be a mangaka?