Matsukata

Matsukata is the principal of Wakaba Park cram school.

Appearance
Matsukata is an old man with long grey hair but bald in the middle, which he tied in a ponytail.

School Festival Time
He return to visit Class E during School Festival Time, bringing some kids and Sakura with him. He like the taste of acorn noodles made by Class E and before leave he believe Class E will be popular as he notice their mysterious power beneath of each students of Class E that sooner or later, the words will spread about Class E's acorn restaurant.

Aftermath
After Koro-sensei has been assassinated. Matsukata was greatly surprised as he received envelop with a pack of money inside it. He got no idea where the money come from but the fact is it was part of Class E's reward for succeding in assassination or Koro-sensei which they gave some to Matsukata as a donation.

Sakura Kiyashiki
Sakura is one of the students that attends his cram school. They seem to have a good relationship with her being eager to show him her high test score.