Yes what was underlined was hiragana character Ku.
http://en.m.wikipedia.org/wiki/Ku_(kana)
They spelled Aku (Evil) and Kusa (Grass)
Yeah Dark type is known as "Evil Type" in Japanese.
http://en.m.wikipedia.org/wiki/Ku_(kana)
They spelled Aku (Evil) and Kusa (Grass)
Yeah Dark type is known as "Evil Type" in Japanese.