Fated Return to Four Star Academy

Yume, Laura, Mahiru, Ako, and Koharu were sent to Korea to practice becoming a better idol by the principal. After three years they return and a few idols are looking forward to it.
As far as the S4 members there are new idols in that place and M4 is the same with one more member.
But dome thing is wrong with the girls. After being away for so long and not having anyone to talk with in Korea, they've become heartless? They're all talking in a rude way to M4 (except Koharu) yet so nicely to everyone else.
Did they do something?
Was it embarrassment?
Was an insult?
Or was it a heartbreak? And what could've they done? Let's hope they find out soon because Valentine's Day is coming up.

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Inspired by "Return of the Stars"

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Disclaimer! I do not own Aikatsu Stars

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Ships:

Yume x Subaru

Laura x Nozomu

Ako x Kanata

Koharu x Asahi

Mahiru x Itsuki

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