The Official Japanese Pokémon website announced that from June 17th, 2017 until July 14th, 2017, Satoshi's Sun and Moon Classmates Pokémon would be distributed at participating AEON locations across the nation. The Pokémon are featured on the TV animation Pocket Monsters Sun and Moon. Those that showed the title screen for the Nintendo 3DS titles Pocket Monsters Sun and Moon or purchased either game could receive limited quantity serial codes to receive the Pokémon as a present.
Distribution Dates:
Mallow's Steenee - June 17th, 2017 until June 25th, 2017
Kiawe's Turtonator - June 26th, 2017 until July 4th, 2017
Lillie's Vulpix - July 5th, 2017 until July 14th, 2017
Poster:
Source:
http://www.pokemon.co.jp/info/2017/06/170609_gm01.html