PICO: BOKU NO CHIISANA NATSU MONOGATARI

An edited version of the first OVA titled pico~ Boku no Chiisana Natsu Monogatari (pico: My Little Summer Story) was released on November 11, 2007. It is a re-edited version of the animation seen in the Boku no Pico OVA set to a new script, featuring content that is more appropriate for viewers under the age of 18. (Source: nekoshota.com) — Description from AniList community (anilist.co).