Shakugan no Shana Episode 21: Diverging Feelings
Episode 21 of 24 of Shakugan no Shana, aired February 28, 2006, 25 minutes. Available with English subtitles and dub where released.
Episode summary
Shana is able to persuade Wilhelmina, at least for now, to not destroy Yuji, who has finally decided to leave Misaki in order to protect it. Later at the bonfire which burned much of the decorations from the festival, a spell is activated.