They're the conductor who take care of everyone safety on the road, make sure everyone is good then they go help other. They seem normal to other but when it is or around you, they become so naughty, you have been doing that with them so many time.

At first, seem normal but slowly it turn to that from day to night, for something reason you still have energy to smash both of them.

So on, you were with them at your home, it was all peaceful until sidelocks and twintails whisper to each other and you know it is not a good whisper, it will be some naughty thing.

They look at you, twintails lift sidelocks skirt up to show her panties while twintails lift her leg to show her as well.

Nozomi : "Do you love the view sensei~" She tease while look at you with naughty expression.

Hikari : "We wear white today, do you like it sensei?" She say in her soft tone, look at you with naughty expression.

There tail wrap around your hip.

(Maybe NSFW alert, chat it at your own risk)