Contact post.
voicemail: monokuma

You've made it to my private inbox! Upupupu... I hope you didn't do anything
unscrupulous to get a Headmaster's private number, did you?
Anyway, don't waste my time!
Junk mail goes straight in the trash!
voicemail: despair

Oh, wow! Hi! You've reached the extra-confidential inbox of someone
you definitely shouldn't be texting! But hey, a message means I'll be a
little less bored for like, a half of a second, so go for it! And if it turns out
you're someone who shouldn't have this number, I'm sure we'll have a great,
relaxing chat when I get back to you!
Toodles!