Dandere

A tsundere-type character will engender a hostile on the outside but sweet on the inside reaction towards the player, while a dandere will show little to know emotion except for subtle displays of affection.

Source: wiktionary

The kuudere and dandere characters have more reserved personalities, hence those qualities are also reflected in their designs.

Source: wiktionary

Then there is Yuri, the blue oni to Natsuki’s red oni, who is shy, cute, and literary but hides a maddening love for the player; she is the archetypical dandere character thought to emerge from the blue-haired Rei Ayanami of the anime Neon Genesis Evangelion […]

Source: wiktionary