basically, yukkuris joined so called 'Doll Freedom Battlefront' led by Medison (Poison doll) and started to wonder why they joined her in first place. Then Medison promised them yukkuris will be treated far better when Dolls take over Gensokyo in humans' stead. Yukkurisa tells Medison it'll do its best and Reimu appears to save the day. Medison lies flat and yukkuris saying 'Why you lostttt!?'