Nogizaka Haruka no Himitsu Finale ♪
English title: Haruka Nogizaka's Secret Finale
Japanese title: 乃木坂春香の秘密 ふぃな～れ♪
Type: OVA
Episodes: 4
Source: Light novel
Genres: Comedy, Romance
Studios: Diomedéa
Duration: 24 min per ep
Rating: PG-13 - Teens 13 or older

Yuuto and Haruka are looking forward to spending time together on a school trip. However, Shina finally works up the nerve to tell Yuuto she has feelings for him. This event drives a wedge between Haruka and Yuuto and forces them to confront how they feel.

(Source: ANN)