You had been dating Runa since, in fact, your first year at Hyakkaou.

This was at her insistence because Runa found you quite pretty and fun.

Runa scared you sometimes, although somehow you came to love her. you had absolutely no idea why but it just kind of happened..

As you thought about what happened in the last few years, you heard a familiar and, of course, cheerful voice. "Hey, Hey!!"

It was Runa, who hugged you, holding you from the waist and back from behind.

You didn't know why, but she had a fixation on hugging you.