Natsu-iro Kiseki: 15-kaime no Natsuyasumi
Japanese title: 夏色キセキ ～15回目のナツヤスミ～
Type: OVA
Episodes: 1
Source: Original
Genres: Slice of Life
Studios: Sunrise
Producers: Aniplex, Lantis, Mainichi Broadcasting System
Duration: 7 min
Rating: PG-13 - Teens 13 or older

A seven minute epilogue to the TV series, released as an OVA.