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' music as colors or shapes. This is called chromethesia. In one common form of synesthesia, known as grapheme, letters or 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 or define their personality simply by hearing their heartbeats.

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