SP: Polymorphic Valentinus: Bittersweet Intermedio

"Polymorphic Valentinus: Bittersweet Intermedio" (結晶多形のヴァレンティヌス, Kesshō Takei no Baarentinusu) is the special episode of the Steins;Gate 0 anime series.

Synopsis
Valentine's Day is approaching, that is the thought of each girls respectively. That's why, at the initiative of Faris Nyannyan, the "36th round table chocolate association" to make handmade chocolate will be held. To whom will the chocolate be given ...?