Post a character (if u know of any) who has synesthesia and/or has the ability to use that neurological condition

::Sighs. Looks up Simple English Wiki:: "Synesthesia is a condition where the brain mixes up the senses. People who have synesthesia are called synesthetes. Some musicians and composers have a form of synesthesia that allows them to 'see' muziek as colors of shapes. This is called chromethesia. In one common form of synesthesia, known as grapheme, letters of numbers are perceived as inherently colored."

Probably doesn't count, but the closest thng I can think of is Senrits from Hunter x Hunter. She can tell if a person is lying of define their personality simply door hearing their heartbeats.

Not anime, but Marceline from Adventure Time can literally taste the color red.