On Valentine's Day, after the two neighbors eat dinner together as usual, Mahiru gives Amane some hot chocolate. Amane accepts it as a normal Valentine's Day gift, but Mahiru seems restless, as if she has something to tell him. When Mahiru rushes home, still unable to say what's on her mind, Amane notices a small bag with a card at his front door. Inside the bag are chocolates that Mahiru made especially for Amane, who had said that he doesn't like very sweet things. In return, Amane gives Mahiru a special present on White Day.
She isn't my girlfriend, but we still 
have a pretty close relationship.
إنّها ليست حبيبتي، لكن علاقتنا قويّة جدّاً
Für jemanden, dem ich nahe stehe,
die aber nicht meine Freundin ist.
No es mi novia,
pero tenemos muy buena relación.
No es mi novia,
pero tenemos muy buena relación.
Ce n’est pas ma petite amie,
mais on est assez proches.
In pratica non è la mia ragazza,
 ma siamo comunque molto legati.
Ela não é minha namorada, mas ainda
temos um relacionamento muito próximo.
Мы не встречаемся, но тем не менее
в хороших отношениях...