Talk:Mysterious Heroine X (Alter)/@comment-36370809-20180815180152/@comment-4802891-20180815180707

Short form of X-chan

エックス (ekkusu > X). ッ(or っ) is a symbol used to double the following consonant. Here, it doubles the "k" in ku.

エっちゃん (ecchan) uses that symbol to double the "ch" of chan. Ergo, "ecchan"