How much do you know about Shundere? This page will teach you everything you need to know.
The Shundere (しゅんデレ) type refers to characters who are very sad and depressed. While a full smile on their face might be out of the question, their love interest can help them open up and feel accepted. This character archetype is often found in anime with serious tones and storylines, such as Misaki Mei from Another.
Unfortunately I have not been able to find a proper translation for Shun in Shundere.
And that should answer the question “What is Shundere?” You can find more information on subcultures and terms just like this in my growing Otaku Encyclopedia, including all other -Dere types!