Dear Koshioka Yuki sama,
DON'T BE SO STINGY!!
TREAT YOUR SENPAI SOME ICE CREAM!!
Poor my dear Macchin *Pats Macchin's head*
I can't believe that you're that stingy! Aren't you the minister of Economy of M.A.D.?
KECCHI! DO KECCHI!! *Sticks out tongue*
Hint:
En san arigatou~
Thanks to En san for the translation! Macchin and Yuki are so cute lol