Yamada-kun and the Seven Witches (Japanese name Yamada-kun to 7-nin no Majo) is a manga series by Miki Yoshikawa that has been adapted into both a live action TV series in 2013 and an OAV/OAD. The first OAD came out in at the end of 2014 and the second episode due for release May 2015.
There are multiple body swaps throughout the manga caused by the first witch that is discovered called Urara Shiraishi, who finds her power is to swap bodies with who ever she kisses. This sets the theme of the series where another 6 witches are discovered, each with a different power that manifests when they kiss someone. Such powers include clairvoyance, invisibility and telepathy.
As Yamada and Shiraishi come to understand Shiraishi’s power, they revive the Supernatural Studies Club.
The live action series starts from the start of the manga’s story, so the first body swap in the manga is shown in Episode 1. I don’t know which chapters in the manga the OVA (OAV/OAD etc… whatever you want to call it) but it appears to be somewhere in the middle. Someone post in the comments if they know!
As well as the live action and the OAV, a TV anime series has just started airing and is being simulcast on Crunchyroll. It began airing for premium users 12th April 2015 and will be available to free users 19th April 2015. 
Yamada-kun to 7-nin no Majo Anime 2015 – Episode 1
Yamada-kun to 7-nin no Majo OAV Anime 2014 – Episode 1
Yamada-kun to 7-nin no Majo 2013 Live Action – Episode 1
