What will you do, little brother?

What the... What's with this getup?

Yumi in her underwear...

Senpai fully naked...

No, no, calm down... calm down... Yuuki Fukuzawa must stay cool!

There's no way such a thing can happen....

This is definitely... an "accident". It was an accident... It's just a chance happening.

Keep my cool, I must keep my cool!

Alright... I'm cool!

Yup, you're truly a mess, huh...