Shion is a very nice and gentle person despite that his name means a lilac flower. His mother was very fond of wild flowers and trees
He is also a clever person as shown in episode 1, he had a lot of trophies on his shelf and is now on a special track (report).
Four years on, he was sent to the Lost Town because he let a VC (Nezumi) escape which caused him to be disqualified in the gifted and talented high ability class and he and his mum moved in. His mum now works at a bakery shop selling muffins and cakes where Shion himself worked as a park supervisor.
He also wants to know a bit more about Nezumi and kindly named some of Nezumi's rats, for example; Hamlet, Moonlit.