Rakujitsu no Pathos

What happens when next door to Fujiwara, an upcoming mangaka, moves Yuuki, who
was his teacher back at high-school and first crush? Yuuki, a married woman now is starting
a new life in the city but her husband is always away on business so she finds comfort in the
company of her former student but what she doesn’t realise is that Fujiwara can listen
to everything happening in her apartment through the building’s thin walls…