Last time, Heejin discovered the hidden ODD EYE CIRCLE and literally turned the world upside down. 

On the other hand, Yves' (or probably ViVi) intervention saved the day. 

But anyway, these two incidents are only tip of the iceberg. 

Now that ODD EYE CIRCLE girls are back together, they regained their colors (red, blue and purple).

Suppose the mirror should be flipped back, but there's no indication that it did. ODD EYE CIRCLE is back to their normal self, with or without doing so. 

Anyhow, Heejin's place is ruined (colors blending in) as her plan backfired. 

Boy, you rock my world

You rock me baby

The effect made her escape the house (ViViD) to the outside world (the light part or LOOΠΔ 1/3).

Will you change it with your fingers?

Red, orange, yellow, green, even thicker, be okay? 

Assuming she left the door open, the newfound colors sort of leaked out into LOOΠΔ 1/3 (or unit #3 as well) causing anomaly in other members' surroundings. 

(i) invisible driver in a moving car (Let Me In)

(ii) the Frog Prince (Kiss Later)

(iii) clones of Cat Girl (Around You)

(iv) variation of Kim Lip's color (red) spread throughout LOOΠΔTION (bright pink, pastel rose)

 As for (iv), the door left open also revealed the LOOΠΔ 1/3 world to ViVi. 

Something highlights

Surprising changes 

Note that ViVi's name in her teaser picture was first written in red, later in pastel rose. 

Pastel rose is not a definite color. The closest one is pastel pink.

In a RGB color space, pastel pink with hex #ffd1fdc is composed of 100% red, 82% green and 86.3% blue. 

Personally, I think the rose color itself depends on its surroundings. Pastel is just a tone and the color of a rose mainly ranges from red to pink.

Pastel rose

Pastel pink

Assuming that ViVi walked through the door (ViViD), her color was also affected. Aside from the changing font color, her original blonde hair became pastel pink when she crossed over. 

Meanwhile, Heejin steps outside to Paris.

She discovers what Paris has to offer (ViViD acoustic mix) and found new joy in travelling. 

While roaming around, she met Hyunjin for the first time. 

This picture of theirs was taken in Paris, though many claimed their first meeting took place in Japan (I'll Be There). 

They get along well, as fellow travellers, briefly before Hyunjin goes off to somewhere else. Heejin then continues the adventure on her own. 

In ODD EYE CIRCLE, Kim Lip wishes to restore their place back to ori