Since the 2 new messages haven't been translated yet and I'm dieing to read them, I'll attempt a translation myself but I'm not fluent yet so beware for some interpretation errors perhaps!
Spoiler:
[QUOTE]
3.31 (Wed) 19:52
First shot into the new school term!
This afternoon.
"Ah Kuma-chan... You're holding your afternoon sleep?"
*Kuma mutters in sleep*
"Ah, what a beautiful sleeping face you have! Eh? Whatcha holding Kuma-chan?
3.31 (Wed) 20:03
Yet another shot into the new school term!!
"What on earth seems to be that important... Oi, let me take a look."
There...
What??!
is it.. is it salmon flakes??
Kuma-chan! When did you-...?
"Ey Hikaru-chan, whatcha doing? You were trying to steal my salmon flakes right? You won't get it! You won't get it!"
"But when did protesting Kuma-chan obtain that kind of stuf?"
"I got it"
"eh!! From who?"
*giggles* "That's private!"
"Whaaaat?" However, I saw it says "contains calcium", how cheeky... I'd have never thought to see you in a bad mood like this Kuma-chan! I see! I absolutely understand now! Who on earth gave it to you!"
Won't be continued.
.. I'm confused

Maybe someone else could better translate what she says at the end in the second message.. Cause this isn't really making sense.