The visitor is a really interesting line of story - and how it turns out in this book was really unexpected. At first I didn't believe it.. it really sounds so rare

Spoiler

that Honoka's sentiment waves could awake the parasite, or that it could live in a robot..

.
The valentine day stuff (and Miyuki and Lina) really make me feel I was reading a cliché shojo where all the girls like the mysterious guy.
But in the end, I like how the story is progressing and how the book ends in the middle of an important fight.