Yuu-chan...?

I understand onee-chan's feelings...

Yuu-chan...

You're okay with that?

Me kissing someone else...

No way!! But onee-chan is an SBJK* just like you, so once she gets on we'll never hear the end of it!! *shittobukai joshikousei, jealous high school girl

That's your reason!?

So, Haruka, after this...

In order to forget her kiss, let's kiss lots and lots...

I see...so that was her intention...!