[Js2756]

Originally Posted by Grenthal

Found something interesting in game - bonus from translators
In case someone is curious

Spoiler:

In main menu theres moon in the background and two "letters" in japanese. Click on the upper one - hidden Ciel Sensei lesson

Spoiler:

There's another one if you click on the line above "Start Game". Apparently one of the staff members is a fan of Suzumiya Haruhi.