This was the 180th broadcast of Haruka's Himitsu Kichi program.
In the challenge corner, Haruka was given a set of three questions,
which had numeric answers.
She had to pick the question which had the number in the middle.
She answered all of them correctly, except for one.
At the end, Haruka announced that this show will be ending after
two more broadcasts (3/31 radio, 4/3 niconico).
