Johto Starters are the starter Pokémon belonging to the Johto region. There are three starter Pokémon.
These Starter Pokémon first appeared in Pokémon Gold and Silver where Professor Elm allows the player character to choose one of them. The rival of the player character takes the starter that is strongest against the player's. The same situation was present in Pokémon Crystal.
In the remakes, Pokémon HeartGold and SoulSilver, the starters get a redesign. Now the chosen starter can follow the player character by walking behind them and the player character can check their happiness. In this version, Professor Elm gives the player character the same starters as well.
The Johto Starters can be found in Pokemon Sun and Moon by using a QR code,but they only appear in a specific day:
Chikorita can only be found Friday;
Cyndaquil can only be found Sunday;
Totodile can only be found Monday;
And you have only one hour to catch them.
The Johto Starters are the only one that can be caught in the wild.