An input control unit includes: a keyboard display unit for displaying characters that can be input on a screen; an input receiving unit for receiving a selection of a character from a user; an input character string acquiring unit for acquiring the selected character and adding the selected character to an input character string; a conversion candidate acquiring unit for acquiring conversion candidate character strings, which are conversions of a character string including the input character string; and a conversion candidate display unit for arranging and displaying the conversion candidate character strings in a row or column and receiving a user's selection. In a case where the conversion candidate character strings do not fit within the row or column, the conversion candidate display unit causes the conversion candidate character strings to scroll within the row or column upon receiving a flick operation.